Other key criteria involve the development of such well-established mineral projects in politically stable jurisdictions, where the projects also benefit from robust infrastructure.
The Company’s primary asset is the wholly-owned, advanced-stage Moonlight Copper Deposit in north-eastern California, which is the centerpiece of Sheffield’s more than 9,000 acre - mineral-rich Moonlight Property.
The Company’s land holdings strategically encompass not only the Moonlight Deposit but also two adjacent historic copper mines that still host valuable polymetallic mineral inventories. Sheffield has an option to earn up to a 100% interest in both deposits, namely the Engels and Superior mines (1914-1930). Other well-mineralized targets are also known to exist within this historic mining camp.
Gold is not the only other metal that is known to exist on the Moonlight Property. Extensive historic drilling on the property has also revealed the presence of silver credits, too. Notably, all of these metals are trading at or near their 30-year highs.
In particular, the Moonlight Deposit is shaping up to be a prospective “company maker” large tonnage polymetallic mineral asset. This is where nearly 100,000 feet of historic drilling spanning 199 holes, as well as Sheffield’s more recent drilling efforts, have demonstrated that copper, silver and minor gold are all present to considerable depths, beginning near surface. Gold is present in significant quantities in the several mineralized areas comprising the Moonlight South early stage exploration target.
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JUNE 15 2007 
