Riverside Resources Inc. - Home

March 4, 2009 - Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) ("Riverside" or the "Company") is pleased to announce exploration results from its recently titled 100 % owned 260 sq km Cerro Azul copper-gold property located in the highly productive Guerrero Gold Belt of southern Mexico. Since the announcement of the Cerro Azul acquisition in 2008 Riverside has focused on exploring the large concession and has defined more than seven target areas which include several epithermal gold targets and at least two porphyry copper-type hydrothermal systems.

Recent exploration on the Cerro Azul property has identified various high grade copper targets the most interesting being located on the southern half of the property. Field rock chip sampling from Cerro Azul has returned assays ranging in Cu values from 0.1 to up to 3.95% and 10 of the 13 samples have shown values of >1% Cu, 4 of the 13 samples returning >2% Cu, and 2 of the 13 samples returning >3% Cu. These assays indicate potential for high grade zones within a 2 kmĀ² area.

Other targets identified on the property have high grade Cu values:

  • Las Parotas with Cu of 1.38%, 1.9%, and 3.0%
  • Loma Coyote with Cu values ranging up 2.0 % and 4.85% Cu,
  • Piedrillo-San Marcos, with samples up to 1.85% Cu,
  • El Llano (Fortuna) with several samples returning >0.5% Cu with 3 samples returning 4.25%, 4.55% , and 12.8% Cu,
  • San Jeronimo with samples of 1.03% and 1.70% Cu,
  • La Concha-Tinoco with several samples returning > 0.1% with peaks of 0.61% and 0.82% Cu,
  • San Gabriel with several samples returning > 100 ppm Cu.

Dr. John-Mark Staude, President & CEO of Riverside Resources, stated, "The work done on the Cerro Azul property is an example of the Riverside team's ability to generate high potential properties, and through field prospecting and solid exploration Riverside can cost effectively outline areas of mineralization that have large extents and exciting potential. With a significant land package the Cerro Azul property has the potential to contain not just a single target but a mining district. Riverside is finding the Cerro Azul property has the potential for high-grade mineralization and with good access and favorable infrastructure the property could be progressed for both high grade and larger lower grade bulk mineralization."

The rocks exposed on the property consist of several intrusive phases and hypabyssal stocks intruding and altering a volcanosedimentary Cretaceous sequence composed of polymictic conglomerates, calcareous sandstones, andesitic epiclastic rocks and andesitic flows. Mineralization is hosted in the intrusions and surrounding lithologies demonstrating a porphyry hydrothermal alteration with peripheral epithermal Cu-Hg, Cu-Au-(Ag), and high-level Au epithermal veins systems. The alteration occurs along >25 km north-south trend possibly related to a major north-south, deep seated fault zone. The alteration halos are 1-2 km wide and represent a cluster of mineralized centers.

Riverside has a strong cash position of over $3,000,000.With the recent announcements concerning Riverside's Kinross Exploration Alliance and Arcus Development Group joint venture agreement, the Company will be able to maintain a strong cash position. 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 orebody discoveries.

The scientific and technical data contained in this news release was 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 Cerro Azul 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.


"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.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

Alex Mason
Corporate Communications Manager
Riverside Resources Inc.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

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