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Press release from Marketwire

US Gold's Regional Drilling in Mexico Returns 213.9 gpt Silver Over 16.1 Meters at Palmarito

Monday, May 10, 2010

US Gold's Regional Drilling in Mexico Returns 213.9 gpt Silver Over 16.1 Meters at Palmarito08:32 EDT Monday, May 10, 2010TORONTO, ONTARIO--(Marketwire - May 10, 2010) - US GOLD CORPORATION (NYSE Amex:UXG) (TSX:UXG) is pleased to announce results from five core holes at the Palmarito Project in Sinaloa State, Mexico. Palmarito is located 9 miles (15 km) from the Company's flagship El Gallo silver discovery (Fig 1) and is part of an aggressive regional exploration program. The best hole from Palmarito intersected 6.2 ounces of silver per ton (opt) over 52.8 feet (ft) (213.9 grams per tonne silver (gpt) over 16.1 meters (m). PALMARITO EXPLORATION OVERVIEW The objective of US Gold's exploration at Palmarito is to increase the size and grade of the resource by identifying new areas that could be included in the El Gallo Preliminary Economic Study (PEA), which is scheduled to be released during the Fourth Quarter. Results included in this release are the first core holes completed in the Palmarito Southwest Zone (Fig 2). US Gold is encouraged by these results because: 1) they successfully confirmed the presence of silver mineralization beyond the limits of the current Palmarito resource; 2) the weighted average grade from these holes is approximately 100% higher than the current resource; and 3) the mineralization is near surface and appears have good growth potential. Highlights from the Palmarito Southwest Zone are listed below: ---------------------------------------------------------------------------- Hole # Silver Length From To Silver Length From To ---------------------------------------------------------------------------- (opt) (ft) (ft) (ft) (gpt) (m) (m) (m) ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-043 2.0 29.0 128.4 157.5 67.2 8.9 39.2 48.0 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-044 3.6 21.7 44.0 65.6 123.0 6.6 13.4 20.0 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-045 4.5 20.3 115.2 135.5 156.0 6.2 35.1 41.3 ---------------------------------------------------------------------------- Including 9.1 5.9 120.4 126.3 311.0 1.8 36.7 38.5 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-046 6.2 52.8 37.6 90.4 213.9 16.1 11.5 27.6 ---------------------------------------------------------------------------- Including 16.1 10.0 59.2 69.2 550.7 3.1 18.1 21.1 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-047 2.8 17.6 428.6 446.2 94.8 5.4 130.7 136.0 ---------------------------------------------------------------------------- Including 7.3 3.9 428.6 432.6 251.0 1.2 130.7 131.9 ---------------------------------------------------------------------------- All depths indicated in table are down hole 1.17 opt Ag (40 gpt Ag) cutoff Allowable waste interval was 9.8 ft (3 m) of less than 1.17 opt Ag (40 gpt Ag) Numbers may not add due to rounding True widths are unknown Drilling in the Palmarito Southwest Zone occurred over a 184 ft (56 m) strike length (Fig 3). Exploration is currently ongoing in the Palmarito Main Zone with drilling focusing on high-grade at depth. Results from these deeper holes are expected to be released in approximately four weeks. US Gold expects to publish an updated resource estimate for Palmarito during the Fourth Quarter as part of the PEA being completed for El Gallo.GEOLOGICAL DESCRIPTION OF PALMARITO Palmarito is a low-sulfidation, epithermal silver deposit. The area is primarily comprised of andesitic-dacitic volcanic rocks of the Sierra Madre Occidental Lower Volcanic Sequence which are cut by a hypabyssal rhyolitic intrusive. Silver mineralization is associated with strong silicification and siliceous breccias at or near the andesite/rhyolite contact. ABOUT US GOLD (www.usgold.com)US Gold Corporation is a Colorado incorporated gold and silver exploration company with a strong treasury, no debt and two significant land holdings, one in Nevada next to Barrick Gold's multi-million ounce Cortez project, and the other in Mexico where an exciting high-grade silver discovery has been made. US Gold's goal is to qualify for inclusion in the S&P 500 within 5 years. US Gold's shares trade on the NYSE Amex and the Toronto Stock Exchange under the symbol UXG. US Gold has good market liquidity, trading 1.0 million shares daily, and is included in S&P/TSX and Russell indices.QUALIFIED PERSONThis news release has been viewed and approved by John Read, US Gold's consulting geologist, who is a Qualified Person as defined by National Instrument 43-101 and is responsible for program design and quality control of exploration undertaken by the Company at its Mexican exploration properties. Samples from the core drilling were split on-site at the Company's Magistral Mine property. One quarter of the split drill core was shipped to ALS Chemex in Hermosillo for sample preparation and analysis by 4-acid digestion with ICP determination for silver and fire assay for gold. Samples returning greater than 1500 ppm silver or 10 ppm gold were re-analyzed using gravimetric fire assay. Standards and blanks were inserted every 25 samples. All holes were drilled with HQ bits. Samples were taken based on lithologic and/or mineralized intervals and vary in length. The true width of the mineral zone has not yet been determined. Certain statements contained herein and subsequent oral statements made by and on behalf of the Company may contain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements may be identified by words such as "intends," "anticipates," "believes," "expects" and "hopes" and include, without limitation, statements regarding the Company's results of exploration, plan of business operations, potential contractual arrangements, receipt of working capital, anticipated revenues and related expenditures. Factors that could cause actual results to differ materially include, among others, those set forth in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2009 and other filings with the Securities and Exchange Commission, under the caption "Risk Factors". Most of these factors are outside the control of the Company. Investors are cautioned not to put undue reliance on forward-looking statements. Except as otherwise required by applicable securities statutes or regulations, the Company disclaims any intent or obligation to update publicly these forward looking statements, whether as a result of new information, future events or otherwise. Palmarito Silver Project: Core Holes Assays Table 1 May 10, 2010 ---------------------------------------------------------------------------- Azi- muth Dip Silver Length From Silver Length From deg- deg- East- North- Hole # (opt) (ft) (ft) (gpt) (m) (m) rees rees ing ing ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-043 2.0 29.0 128.4 69.7 8.9 39.2 283 -70 200980 2830310 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-044 3.6 21.7 44.0 123.0 6.6 13.4 110 -50 200943 2830305 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-045 4.5 20.3 115.2 156.0 6.2 35.1 257 -70 200966 2830287 Including 9.1 5.9 120.4 311.0 1.8 36.7 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-046 6.2 52.8 37.6 213.9 16.1 11.5 115 -50 200935 2830269 Including 16.1 10.0 59.2 550.7 3.1 18.1 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PMX-047 2.8 17.6 428.6 94.8 5.4 130.7 115 -45 200897 2830282 Including 7.3 3.9 428.6 251.0 1.2 130.7 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- To view Figure 1, please visit the following link: http://media3.marketwire.com/docs/uxg0510fig1.pdf.To view Figure 2, please visit the following link: http://media3.marketwire.com/docs/uxg0510fig2.pdf.To view Figure 3, please visit the following link: http://media3.marketwire.com/docs/uxg0510fig3.pdf.FOR FURTHER INFORMATION PLEASE CONTACT: US Gold Corporation Ian J. Ball VP, Mexico (647) 258-0395 or Toll Free: (866) 441-0690 (647) 258-0408 (FAX) or US Gold Corporation Mailing Address 99 George Street, 3rd Floor Toronto, ON M5A 2N4 info@usgold.com www.usgold.com