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 | | |  Riverside Resources Inc. (TSX-V: RRI) has optioned the El Capitan property, a hot spring type gold property in Durango, Mexico near recent discoveries at San Augustin (Geologix) and Camino Rojo (Canplats) in the Durango-Zacatecas metalliferous belt. The project is located in the Penoles district, where Compania Minera Penoles got its start over 100 years ago. Past production from underground mines includes silver, lead and zinc and dates back to the late 1800's. Currently, the district is inactive and the town of Penoles is in decline. 2008 drilling results consistently intersected a shallow, gold mineralized body. 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 "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. Penoles District, Durango, Mexico Drill Results
* 1000 ppb = 1 g/t Three diamond holes drilled by a previous operator on the margin of the El Capitan target targeted a NW-striking silicified zone referred to as the "El Capitan vein.". Drill results are listed in Table 1. Historic Diamond Drill Results for El Capitan
Samples of split core were collected at one or two meter intervals (minimum: 0.2 meter, maximum: 3.07 meters) and submitted to ACME Labs for analysis. The lab used normal crushing and splitting procedures followed by fire assay analysis of a one assay ton sample. Standards and replicate samples were included by the lab at regular intervals; reproducibility of results was excellent. A review of the drill core and a reinterpretation of the drill results in Table 1 indicate long intervals of low-grade, stockwork-related gold mineralization. Field review of the Tertiary volcanic section reveals that much of the hill is composed of silicified hot spring colluvium and is not a volcanic rock as previously mapped. The El Capitan "vein" is actually a bedding-conformable layer of banded chalcedonic silica. This information suggests that the "vein" may be a sinter and that the target is a hot spring-related, bulk-mineable vein stockwork rather than a cross-cutting, structurally-controlled vein. The El Capitan drilling has successfully intersected the IP anomaly previously identified by Riverside 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.
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