Riverside Resources Expands Gold Discovery and New Gold Target Zones at Tajitos Gold Project, Sonora, Mexico

April 7, 2010 – Vancouver, BC: Riverside Resources Inc. (“Riverside” or the “Company”) (TSX-V: RRI) is pleased to announce new high grade gold results and additional gold targets from the Tajitos Gold Project in Sonora, Mexico. Since the announcement of the Tajitos acquisition on January 5, 2010 the Company has advanced the Project towards a drill program. The focus of the Tajitos exploration program is to identify a large orogenic gold body with similar geologic structures, surface mineralization and aged host rocks to near by operating open pit gold mines. Highlights from the past two months of work on the property include:

* The identification of disseminated gold mineralization in the wall rock, in addition to the high-grade gold quartz veins at the central Tajitos target. This expands the discovery and increases the potential for a disseminated gold body near the surface.

* The addition of the 146.7 km² Cortes Concession to the Tajitos Project. The recently staked land triples the Tajitos land package and adds over 25 km of ground in the heart of the Mojave Sonora Megashear gold belt.

* Sampling and magnetic results from the Tejo, Tajitos and Cortes targets. The recently acquired results confirm Riverside’s geologic theory and have identified at least two new drill target zones on the project. Recent magnetic results are available at www.rivres.com/tajitos/diagrams.html.

Field work by Riverside’s geologists, along with new aeromagnetic geophysical data, identified a 25 km extension within the Mojave Sonora Megashear. The extension is located adjacent to Riverside’s Tejo and Tajitos targets, in the heart of the Mojave Sonora Megashear. The Megashear is one of the richest gold belts in Mexico and has multiple large scale open pit heap leach gold operations. The 146.7 km² Cortes Concession, which lies within the Megashear, more than triples the area of the Tajitos project and shows the potential for the project to become a district sized opportunity. Riverside has been strategically developing a commanding land holding along this major gold belt and is now advancing its gold discoveries.

Recent work on the project has identified three target drill zones, each of which has the potential to be advanced towards a mine. These include:

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The central Tajitos zone, where Riverside has identified high grade gold in quartz veins. Sampling has identified up to 1 Oz/t Au in 1-3m wide vein structures with broad lower grade Au halos of up to 20 meters.

* The Tejo zone, where the magnetic results and geology indicate a continuation of the gold mineralization immediately to the southeast of the high-grade vein system.

* The Cortes Concession to the southeast, which has more than 25 kilometers strike length and various hydrothermal targets.

“The Tajitos project has been on Riverside’s radar since the Company’s inception. The property is in the right place and has the right geology for a major gold discovery. Recent exploration on the project shows evidence of our initial theory that the gold anomaly continues to the southeast below cover. As historic drilling has documented, there is disseminated gold mineralization in the wall rock, in addition to the high-grade gold quartz veins. This enhances the potential for an open pit type gold body.” stated John-Mark Staude, President and CEO of Riverside Resources, “This latest discovery is consistent with our exploration model and begins to demonstrate the potential to find and build near surface resources on the property.”

Project Overview:

Geochemical and geophysical exploration results have found continuity of the >1 oz/t Au surface samples, and traces the overall gold structural trend on Riverside’s tenement for over 20 kilometers. A number of new high-grade gold anomalies indicate Riverside has potentially identified a major gold camp. The gold anomaly extends to the southeast of the Tajitos concession onto the Cortes and Tejo concessions. Riverside has completed field mapping and ASTER alteration analysis, and is continuing to define the structural block using a detailed ground magnetic survey. After analyzing the new data, Riverside’s technical team believes that the high-grade gold anomaly on the Tajitos project could lead to a much larger gold system.