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Atna's Triple Junction and Dixie Fork projects are Carlin type sediment-hosted prospects located at the south end of the prolific Carlin Trend. The projects are along trend and south of Newmont's Rain deposit cluster, which includes Rain, Saddle, Emigrant Springs, and Tess. The Rain deposit cluster has a combined resource in excess of 5 million ounces in open pit operations and high-grade underground deposits. The Triple Junction property is in a structural and geological setting similar to the Rain deposit. The property is flanked by a structurally controlled, north-striking zone of intense jasperoidal silicification and argillic alteration extending 1,500 metres in strike length. North-northeast and west-northwest structures, similar in orientation to those at Rain, intersect at the gold occurrence. Gold assays as high as 7 g/t gold are found in rock sampling on the Triple Junction property. The mineralized area is characterized by strong argillic and silica alteration, enriched in arsenic and barite and cut by felsic dikes typical of Carlin-type deposits. The Dixie Fork property is situated about half way between Triple Junction and Rain in similar stratigraphy on the same structural trend. The target area encloses a graben structure, with uplifted target formation rocks on its margins, where it is cut by Rain-trend parallel faults, felsic dikes, and barium enrichments. The contact between the hangingwall Webb formation and footwall Devils Gate limestone, hosts the bulk of the mineralization in the Rain District. The strong surface mineralization and alteration present at both properties occurs at a stratigraphic interval thought to be 200 to 400 meters above the main productive horizons. This contact, adjacent to graben faults, is the target of the Atna's proposed exploration program. Drilling by previous operators has generally been limited to the uppermost 70m. Atna completed a ground-based gravity survey and mapping in 2003 and has formed a joint venture with Sage Gold Inc (TSX-V:SGX formerly Sahelian Goldfields Inc.) to advance the property through drilling. Sage Gold may earn a 55% interest in the properties by drilling 15,000 feet before November 2007. The partner may then elect to form a joint venture with Atna (55% Sage Gold, 45% Atna) or to increase their interest to 70% before forming a joint venture by funding and completing a bankable feasibility study. Sage Gold is in the process of negotiating for additional property adjacent to the Triple Junction-Dixie Fork property and will commence drilling activities upon concluding these negotiations. Maps
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