Entree Gold has confirmed the existence of a potentially viable shallow copper oxide resource and additional deeper sulphide mineralization at the Blue Hill deposit located about 3km west-northwest of the company's Ann Mason deposit within the Yerington copper camp of Nevada.

Assays received from recent drilling on the Blue Hill target define a zone of shallow copper oxide mineralization over an area of 700m by 500m.

The presence of extensive copper oxide mineralization at Blue Hill is important as this type of mineralization could allow mining at lower grades and reduced costs using heap leach-solution extraction technology in comparison to a conventional sulphide milling operation, Entree said.

Recent deep-penetrating induced polarization geophysical surveys, combined with drill results, indicate the underlying Blue Hill sulphide zone is larger than previously identified.

The Blue Hill mineralization is believed to be a faulted portion of the Ann Mason deposit that has the potential to develop into a significant discovery with continued exploration.

Entree will focus its ongoing exploration efforts on expanding the 7.1 billion pound inferred resource at Ann Mason and delineating the oxide and sulphide systems at Blue Hill.

Entree president and CEO Greg Crowe said that exploration work undertaken on Blue Hill has enhanced the company’s expectations of the Yerington district and the Ann Mason and Blue Hill projects in particular.

Entree is a Canadian mineral exploration company focused on the worldwide exploration and development of copper and gold prospects.