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Riverside Resources Reports Positive Results From Penoles Mining District, Durango, Mexico

December 12, 2008 -- Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to report new results from three targets on the 350 square km Penoles concession located in Penoles Mining District, Durango, Mexico. The concession has a diversity of deposit types, including the Jesús María Pb-Zn-Cu vein system, San Rafael Ag vein system and the El Capitan disseminated epithermal gold system. Riverside completed core drilling at the El Capitan area (News Release October 20, 2008) and since that time has completed mapping, sampling, and targeting on three vein targets that extend over eight kilometers of strike length and have numerous historic mines, workings, and open cuts indicating there could be a number of potential drill targets on Riverside's property.

"Our Exploration Team has identified three priority targets that expand upon the already drilled shallow, consistent gold-rich horizon that Riverside announced in October," said Dr. John-Mark Staude, President and CEO, Riverside Resources. "With the confirmation of three new targets on our Penoles Property and our El Capitan gold area, we have assembled a cluster of high quality, relatively low risk, mineralized targets at a relatively low cost as we build upon extensive early expenditure in the district. We are very pleased with our progress on the Penoles Project which was added to our portfolio of properties earlier this year."

The Penoles Mining District is where the mining company Compania Minera Industrias Penoles was founded 120 years ago and is located near the recent discoveries at San Augustin (Geologix), Penasquito (Goldcorp), Juanicipio (MAG Silver) and Camino Rojo (Canplats) which are in the same Durango-Zacatecas metalliferous region.

Compania Minera Industrias Penoles mined the Jesús María vein system from 1887 to 1908 and produced grades from 300 to 2000 g/t Ag, 3-12% Pb, and 4-10% Zn to a depth of 200 meters. Riverside's recent exploration on and around this former Penoles mine has identified quartz-calcite-pyrite veins with barite and chlorite selvages and silver minerals, galena, sphalerite, and minor chalcopyrite of up to 3 meters in width which have been mined along more than 600 meters of strike length. A moderately strong IP conductor has been identified along the vein which is interpreted as a fault structure with multiple episodes of shearing and is a potential drill target. Vein jogs and bends may be the nucleus of a possible high grade ore body with potential mineralized shoots hosting silver mineralization. Assay results from dump and surface vein exposures samples on the Jesús María target exceeded 255 g/t Ag.

The San Rafael vein system strikes east to west and contains several historical mining sites. It includes a major shaft exceeding 100 meters depth and an abandoned mill site at the centre of the vein system. The San Rafael vein was also historically mined by Compania Minera Industrias Penoles producing grades ranging from 300 to 1000 g/t Ag. Recent chip sampling by Riverside returned over 180 g/t Ag in various samples and has identified potential drill targets along the vein, particularly in structural flexures and wider quartz-sulfide shoots. The vein structures appear to have no known drilling although there are open stopes indicative of historical production.

The El Tubo is a gold-bearing vein system one kilometer to the east of the village of Penoles where values of 0.5 g/t Au are common in surface samples and a 30 meter wide alteration body has been mapped and could be drill tested. Recent assays show relatively high Au:Ag ratios compared to the Ag-base metal dominant veins at Jesus Maria and San Rafael, a possible indicator of a two stage mineralization history in the Penoles Mining District. Surface samples have identified potential targets along the down dip continuation of strong silicification, quartz stockwork, and hematized brecciation. The recent drilling by Riverside at El Capitan intersected extensive hematite and silica in some of the gold rich zones and the El Tubo zone may be a feeder zone into a different but similar mineralized stratigraphic contact.

Recent exploration on Riverside's 350 square km concession in the Penoles Mining District has resulted in a new possible open pit gold discovery at El Capitan and a minimum of three targets with significant potential: the Jesús María, San Rafael and El Tubo. Maps, cross sections and details about the Penoles project along with a 3-D model showing the drill-hole locations and intercepts from the El Capitan drill program are available on www.rivres.com.

Riverside Resources is focused on capitalizing on its technical team's extensive experience and on the ground local approach of mineral exploration through active joint ventures and cost effective exploration work. By partnering with other companies on the majority of the projects Riverside minimizes exploration risk and ensures that various projects are taken forward each year. The generative program is based on the team's more than 60 years of collective exploration experience and participation in over a half dozen ore body discoveries. At the end of November 2008 Riverside had approximately C$3.4 million in cash on hand and 17,828,500 shares issued and outstanding.

The scientific and technical data contained in this news release were prepared under the supervision of Locke Goldsmith, P. Eng., P. Geo., an independent qualified person to Riverside Resources, who is responsible for ensuring that the geologic information provided in this news release is accurate and acts as a "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects. Samples for the Penoles project were prepared by Inspectorate Labs of Durango City, Durango State, Mexico and then analyzed by Inspectorate Labs of Reno, Nevada, USA using aqua regia digestion on a 15-gram sample followed by ICP-MS analysis. All labs are ISO certified.

ON BEHALF OF RIVERSIDE RESOURCES INC.
"John Mark Staude"
Dr. John-Mark Staude, President & CEO

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect" or "plans"). Such information involves known and unknown risks -- including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings -- that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. Riverside disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For additional information contact:

John-Mark Staude
President & CEO, Director
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

Alex Mason
Corporate Communications Manager
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Riverside Resources Receives NI 43-101 Report on Historic 1.2 Million Ounce Gold Body at Sugarloaf Peak, Arizona

November 14, 2008 - Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to announce that it has received an independent NI 43-101 technical report for the Sugarloaf Peak Gold Project near Quartzsite, Arizona. The new report describes a number of historic non-NI 43-101 compliant resource estimations including 100 million tons at ~ 0.5 g/t gold average grade for a total of 1.5 million ounces gold (N.E. Dausinger, Jr., 1983, Westworld Inc. report concluded 100 million tons of 0.015 oz/t gold) from shallow drilling averaging less than 130m depth. A more recent report describes a higher grade historic, non-NI 43-101 compliant, estimated resource of 60 million tons of ~ 0.6 g/t average grade (N. E. Dausinger Jr., 1987) for a total of 1.2 million ounces gold with mineralization open to depth and along strike. These estimates are of historic resources and the Riverside geologic team has not yet completed sufficient work to confirm a NI 43-101 compliant resource. Therefore, the estimates cannot, and should not be relied upon. This historic resource estimation along with other estimations are summarized in the new NI 43-101 technical report which will be filed on www.sedar.com as well as made available on Riverside's website.

"We are delighted to be progressing and delivering on our deadlines with this new report that pulls together our data along with previous work spanning more than 30 years and has found additional non-NI 43-101 compliant resource estimations along with a treasure of previous exploration data", said John-Mark Staude, Ph.D., President and Chief Executive Officer Riverside Resources. "Our geological team believes that there is an open pit gold body at Sugarloaf Peak which is has ample room to expand laterally and with depth. The recent work adds significant value to both the project and the Riverside shareholders because now the project can cost effectively build upon previous work and has targeted the highest potential gold zones. The Sugarloaf Peak Gold Deposit is one of the cornerstone projects for Riverside and our exploration team will build on our recent work and compiled data from this report to move this project toward expanded discovery. In addition, we are continuing to look for high quality projects as well as partnerships with third parties on our Mexico portfolio of properties to ensure those projects continue to be advanced."

Sugarloaf Peak is in the same region of Arizona as the formerly open pit gold producing mines of the American Girl, Mesquite, Picacho and Copperstone. The Sugarloaf Peak project has favorable infrastructure and can be worked on year round. For over 50 years the property has been the object of intermittent drilling and small scale mining. During the 1950s through 1990s work on the property resulted in various historic, non NI 43-101 compliant, resource estimations which Riverside has now compiled and is using for targeting in the next stage of exploration. The data compilation has also identified higher grade zones which indicate the potential for multi-gram high grade gold, with wide shear zones that will be part of the focus for the next stages of exploration work. The property's hydrothermal system has extensive quartz-sericite-pyrite alteration consistent with a large mineralized system. The historic drilling tested less than half the area exposed at surface and generally only to 100m depth thus leaving large volumes to further drill test. The wide spaced drilling did not focus on finding high grade zones but instead began outlining a bulk tonnage, large body of shallow mineralization with possible high grade zones which could positively impact the economics of a potential mine.

The technical content of this news release has been approved and field review completed by Mr. Locke Goldsmith, P Eng. and P. Geo, an independent qualified person as defined in NI 43-101. For more details on the mineralization and previous exploration of the Sugarloaf Peak Property, please visit www.rivres.com.

Riverside is well capitalized with more than $3.5 million in cash, no debt and less than 18 million shares issued and outstanding. The Company is moving forward with the Sugarloaf Peak project as scheduled. Recent results from the project can be found in the September 8, 2008 news release on the Riverside website www.rivres.com.

Riverside operates with a generative exploration business model using experienced local prospectors, explorers and geologists to identify and acquire high quality mineral opportunities. Riverside looks for the most cost effective ways to build share value. To date, Riverside has announced five property acquisitions in Mexico which are summarized at www.rivres.com and the Company continues building and joint-venturing a diverse mineral property portfolio.

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect","estimates", "intends", "anticipates", "believes", "plans"). Such information involves known and unknown risks -- including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release.

For additional information contact:

John-Mark Staude,
President & CEO
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

Alex Mason
Corporate Communications Manager
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Riverside Resources Mexico Gold Projects Options Accepted And Work Program To Commence

September 16, 2008 -- Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to report that the TSX Venture Exchange has accepted an independent National Instrument 43-101 Technical Report and other documentation submitted by Arcus Development Group Inc. (TSX-V:ADG) related to the previously announced (April 14, and April 17, 2008) options on two of Riverside's Mexican gold exploration projects. The projects are the Chapalota and La Ventosa properties and were optioned to Arcus by Riverside by way of letter agreements dated April 10, 2008.

"Riverside is excited to see Arcus progress with its firm commitments to carry out exploration at two of Riverside's 100% owned Mexico projects. This should see a minimum of $350,000 and $250,000 in expenditures on Chapalota and Ventosa over the next 12 months", said Dr. John-Mark Staude, Riverside's President and CEO. "This agreement with Arcus is a good example of Riverside executing on its business model which involves using its technical team to generate quality early-stage exploration opportunities for its portfolio and then partnering with third parties to further the exploration. This strategy combined with Riverside furthering the exploration of select properties on its own, exposes our shareholders to a wider scope of exploration opportunities. In addition, our current working capital position should allow us to continue to execute on our business plan for the foreseeable future."

Eric Tweedie, the Arcus VP of Exploration stated, "We look forward to starting our work programs on the Mexican properties later this fall. We are currently outlining specific work plans and budgets for each property. The initial phase of work on both projects will identify drill targets. Phase two will include the drill testing of specific targets. At present, priority will be given to the work at Chapalota, based on the historic artisanal gold production in the area."

The Chapalota property is located in southern Sinaloa, Mexico near Geoinformatics' La Noria Project and south of US Gold's Magistral Mine. Arcus can acquire a 51% interest in the Chapalota property by making $300,000 in cash payments, issuing 350,000 Arcus shares and incurring exploration expenditures of $4,000,000 prior to September 12, 2012. Exploration expenditures in year one include a firm commitment of $350,000. Arcus can also exercise a second option to acquire an additional 14% interest in the property by incurring a further $2,500,000 in exploration expenditures and paying Riverside $500,000 within two years of acquiring its initial 51% interest in the property.

La Ventosa property is located in a relatively unexplored area of southeastern Oaxaca. Arcus can acquire a 51% interest in the La Ventosa property by making $150,000 in cash payments, issuing 200,000 Arcus shares and incurring exploration expenditures of $2,000,000 prior to September 12, 2011. Exploration expenditures in year one include a firm commitment of $250,000. A second option to acquire an additional 14% interest can be exercised by Arcus incurring a further $2,000,000 in exploration expenditures and paying Riverside $300,000 within two years of acquiring the initial 51% interest in La Ventosa property.

Neither property is subject to any underlying third party interests. Each property is the subject of an independent NI 43-101 technical report prepared by Derrick Strickland, P.Geo. Both reports will be available at SEDAR.com.

The intial payments from Arcus to Riverside will include at total of $75,000 and 100,000 shares of Arcus and will help add to Riverside's working capital. At the end of July 2008 cash on hand was estimated to be approximately $4,000,000.

Per the interim financial statements (filed on www.sedar.com on August 20, 2008), for the nine month period ended June 30, 2008. Riverside spent $986,036 in exploration on eight properties in three countries. The primary exploration focus was the Capitan Project in the Penoles District, Durango, Mexico where drilling has been completed and total expenditures of $429,851 have been incurred.

More information on Riverside as well at its portfolio of mineral projects can be found on its website www.rivres.com.

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect" or "plans"). Such information involves known and unknown risks -- including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings -- that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. Riverside disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For additional information contact:

John-Mark Staude
President & CEO, Director
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

Murray Seitz
Director
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Riverside Resources Reports Drill Results From El Capitan Project, Durango, Mexico

October 20, 2008 -- Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to report encouraging drilling results that consistently intersect a shallow, gold mineralized body at the El Capitan gold project in the Penoles Mining District, Durango, Mexico. The 968 metre diamond drilling program consisted of five holes which identified a central gold zone that connects with gold outcrops and now with this drilling campaign suggests broader continuity of gold mineralization. Drill assay highlights of the program include:

  • 9.80 metres grading 1.07 g/t Au from hole CDDH-08-01
  • 9.55 metres grading 1.11 g/t Au from hole CDDH-08-02
  • 1.45 metres grading 2.51 g/t Au from hole CDDH-08-01

"Our exploration program has confirmed the discovery of a relatively shallow, 10 to 30 metre thick gold-rich mineralized horizon which is a new gold body in the Penoles District of Durango, Mexico," said Dr. John-Mark Staude, President and CEO, Riverside Resources. "The new El Capitan gold body in the Penoles District has similar geology and gold grades to the currently operating Castillo Mine of Castle Gold, located 75 km to the south of El Capitan. We are pleased that the El Capitan drill program was completed under budget and effectively evaluated the geologic target with gold intercepts in all five holes. Riverside only tested the Capitan target and the other targets look promising as the polymetallic veins are what has historically been produced in district thus leaving substantial upside in addition to the gold body the company has now discovered."

The five hole drill program at El Capitan confirmed the hypthothesized epithermal style gold deposit located at the basal geologic contact. This geologic feature appears to be predictable and so far consistently traceable laterally into a wide and continuous surface exposed volcanic-sedimentary contact similar to other known gold districts such as Round Mountain, Nevada and Mulatos, Sonora. The geologic interpretation indicates potential expansion with further drilling and potential growth of the gold-rich mineralized volume. Holes 1 and 2 both intercepted the targeted silicified, oxidized volcanic-sedimentary permeable contact zone with gold values across selected intervals returning 9.80 metres of 1.07 g/t Au and 9.55 meters of 1.11 g/t Au, respectively. Longer intervals of 29.2 metres of 0.53 g/t Au and 32.3 metres of 0.66 g/t Au were intercepted in holes 1 and 2 respectively. Step out drill holes 3, 4, and 5, penetrated the stratigraphic contact with gold bearing intervals of 0.2g/t to 0.4g/t Au and begin to define a large volume, lower gold grade of mineralized rock. Results from the current drill program taken in conjunction with previous drill results from the Capitan Hill define a high grade, greater than 1 g/t, gold zone inside a large volume of approximately 0.5 g/t Au average grade in oxidized rocks. This mineralized area links with the surface exposed gold rich zone which has a strike of greater than 1,000 meters and has now been drilled over a 700m x 200m area and remains open to the Northwest of the contact zone.

Summary of Selected Capitan Project, Penoles District, Durango, Mexico Drill Results

Drill Summary

Hole #

From

To

Length

Au

(m)

(m)

(m)

(ppb)*

CDDH-08-01

33.75

35.20

1.45

2510

47.00

76.18

29.18

530

includes

61.90

71.70

9.80

1067

CDDH-08-02

89.94

122.25

32.31

659

includes

102.25

105.30

3.05

1844

includes

102.25

111.80

9.55

1114

CDDH-08-03

31.05

35.05

4.00

860

74.60

78.90

4.30

724

84.80

111.00

26.20

275

183.05

190.30

7.25

443

CDDH-08-04

182.65

189.50

6.85

265

includes

184.10

188.30

4.20

343

CDDH-08-05

71.13

72.65

1.52

992

 

176.50

217.00

40.50

215

includes

180.25

188.00

7.75

358

*1000 ppb = 1 g/t

The El Capitan drilling has successfully intersected the IP anomaly identified by Riverside's summer exploration work and a larger potential foot print of possible mineralized rock can be interpreted. More drilling is warranted to further test the strong conductive and resistive qualities as well as to now target a potential high grade feeder zone. The current drill program was shallow and focused on El Capitan open pit, epithermal gold target to evaluate volume and continuity. There are at least two key target areas remaining to be tested: the polymetallic, silver-gold veins which were previously mined at Penoles and an undrilled 3 kilometer long vein system. The vein mineralization has extensive potential with the possibility for a vein discovery similar to those found in the Fresnillo District in Zacatecas, Mexico.
The Penoles District exploration on Riverside's >310 square kilometer concession area has resulted in a new open pit gold discovery, the development of two other drill target areas and has outlined a number of follow up exploration areas. Cross sections, details about the drilling and a rotating 3-D model are available on www.rivres.com to show the drill hole locations and intercepts more clearly.

Riverside Resources is focused on capitalizing on the technical team's strong experience and on the ground local approach of mineral exploration. Partnering with other companies on the majority of the projects ensures a number of projects each year will be drill tested. The generative program is based on the team's more than 60 years of collective exploration experience and participation in over a half dozen orebody discoveries. At the end of September 2008 Riverside had approximately $3.7 million in cash on hand and 17,828,500 shares issued and outstanding.

The scientific and technical data contained in this news release were prepared under the supervision of Locke Goldsmith, P. Eng., P. Geo., an independent qualified person to Riverside Resources, who is responsible for ensuring that the geologic information provided in this news release is accurate and acts as a "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects. Samples for the Capitan project were prepared by Inspectorate Labs of Hermosillo, Sonora, Mexico and then analyzed by Inspectorate Labs of Reno, Nevada, USA using aqua regia digestion on a 15-gram sample followed by ICP-MS analysis. All labs are ISO certified.

ON BEHALF OF RIVERSIDE RESOURCES INC.
"John Mark Staude"
Dr. John-Mark Staude, President & CEO

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect" or "plans"). Such information involves known and unknown risks -- including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings -- that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. Riverside disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For additional information contact:

John-Mark Staude
President & CEO, Director
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

Alex Mason
Corporate Communications Manager
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Riverside Resources Reports Positive Results from Gold Projects in Mexico And Usa

September 8, 2008 - Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to report initial results from exploration programs on the Sugarloaf Peak Gold Project in Arizona, the Libertad Gold Project located in Sonora, Mexico and the El Capitan Gold Project in Durango, Mexico. Over the last three months the Company has completed detailed geological mapping and sampling programs on the Sugarloaf Peak and Libertad properties with multi-element analytical results returning assays up to 6 and 8 g/t Au respectively. In addition, the Company has completed a five hole core drilling program at the El Capitan Project with all five holes successfully intersecting the targeted stratigraphic horizon at shallow, potential open-pit depths. Cores have been logged, split and sent to Inspectorate Laboratories for multi-element analyses.

"We are encouraged by the initial results and expansion of the targets coming from our exploration programs on the Sugarloaf, Libertad and El Capitan projects," said Dr. John-Mark Staude, President and CEO, Riverside Resources. "Our exploration programs are adding to our property information which allows us to better identify prospective drill targets. We look forward to continue to execute on our prospect generator business plan of advancing mineral properties with great potential."

The Sugarloaf Peak Gold Project, located west of Quartzsite, Arizona, has been the object of at least four intermittent drilling campaigns and small scale lode and placer gold mining during the 1950's through 1990's resulting in a historic, non 43-101 compliant, estimated resource of more than 1.2 million ounces of 0.6 g/t gold average grade. The geological mapping and sampling program completed this summer has established continuity with historic data and has expanded the size and identified gold grades of the known surface anomaly. It has also outlined a large 1,200 meters by 600 meters area of quartz veining with sericite-clay alteration which appears to be only a portion of the surface expression of a hydrothermal alteration foot-print of the target. The surface sampling program returned gold assays of up to 6.8 g/t Au and has expanded the known areal extent of anomalous gold values. Riverside's technical team has been combining historic drill data with the new detailed mapping and sampling to improve the understanding of the property's mineralization. The information will be used for a NI 43-101 Technical Report which is nearing completion.

A five hole drill program has been completed on the El Capitan, a hot-spring type epithermal gold property located in Durango, Mexico focused on extending the results from gold-bearing surface samples and previous drilling that intersected gold mineralization. The surface exposure of gold mineralization in silicified stratigraphic contact zone has strike length of more than a kilometer. The property is located near recent discoveries at San Augustin (Geologix, TSX-V:GIX) and Camino Rojo (Canplats,TSX-V: CPQ) in the same Durango-Zacatecas metalliferous belt.

The detailed geological mapping and sampling programs on the Libertad Project in western Sonora, Mexico appear to have identified a potential strike length of exposed anomalous gold values of over 1.8 km along strike. Quartz veining in stockwork and sheeted zones greater than 6 meters wide as well as sheared volcanics have returned gold values ranging up to 8.5 g/t Au in grab samples. Silver values of 30 to 198 g/t in the same structures show that the mineralized zones have a multi-precious element character. Other elements, such as antimony and lead indicate a metal zoning which may help to identify the potentially high grade areas of the structures. The geologic characteristics and the overall geology are similar to the San Felipe Mine in Baja California (625,000 oz Au produced). An Aster remote sensing study is underway on the project and additional field work is being conducted.

The scientific and technical data contained in this news release were prepared under the supervision of Locke Goldsmith, P. Eng., P. Geo., an independent qualified person to Riverside Resources, who is responsible for ensuring that the geologic information provided in this news release is accurate and acts as a "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects. Samples for the Sugarloaf Peak Project were processed at Jacob's Skyline Laboratory in Tucson and then shipped to ALS Chemex in Vancouver for analyses. Samples for the Libertad project were prepared by Inspectorate Labs of Hermosillo, Sonora, Mexico and then analyzed by Inspectorate Labs of Reno, Nevada, USA using aqua regia digestion on a 15-gram sample followed by ICP-MS analysis. All labs are ISO certified.

At the end of July 2008 Riverside had approximately $4 million in cash on hand.

Riverside Resources follows a prospect generator business model focused on capitalizing on the technical team's strong experience and on the ground local approach of mineral exploration. Partnering with other companies on the majority of the projects ensures a few projects each year will be drill tested. The generative program is based on the team's more than 60 years of collective exploration experience and participation in over a half dozen orebody discoveries.

More information on Riverside as well at its active joint ventures can be found on its website www.rivres.com.

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect" or "plans"). Such information involves known and unknown risks - including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings - that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. Riverside disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For additional information contact:

John-Mark Staude
President & CEO, Director
Riverside Resources Inc.
info@rivres.com
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.