| Quadrangle map, 1:250,000-scale | SR |
|---|---|
| Quadrangle map, 1:63,360-scale | D-3 |
| Latitude | 60.9436 |
| Longitude | -147.9877 |
| Nearby scientific data | Find additional scientific data near this location |
| Location and accuracy | The prospect is located on the west slope of a mountain about 2 miles south of Golden at an elevation of 1,500 feet. It is in the W1/2 section 23, T. 10 N., R. 8 E., of the Seward Meridian. This is location 112 of Condon and Cass (1958), location 76 of Cobb and Richter (1972), location 162 of Cobb and Tysdal (1980), and location S-127 of Jansons and others (1984). This location is accurate to within half a mile. |
Geologic descriptionThe prospect is hosted in sheared graywacke and slate of the Valdez Group of Late Cretaceous age. The deposit is in a 2- to 5-foot-wide shear zone and consists of lenses and stringer veins of quartz as much as 2 feet wide (Tysdal, 1978 [MF-880-A]). The shear zone dips vertically and is traceable for 300 feet along a northeast strike. The veins contain arsenopyrite, galena, pyrite, sphalerite, and gold (Johnson, 1914 [B 592-G, p. 225]). The workings on the prospect consist of a 155-foot adit; improvements in the early 1900s included an arrastre mill and cabin (Johnson, 1914 [B 592-G, p. 225]). | |
| Geologic map unit | (-147.989750433544, 60.9430248224436) |
|---|---|
| Mineral deposit model | Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a) |
| Mineral deposit model number | 36a |
| Age of mineralization | Cretaceous or younger; the deposit cuts rocks of the Valdez Group of Late Cretaceous age. |
| Workings or exploration | The workings on the prospect consist of a 155-foot adit; improvements in the early 1900s include an arrastre mill and cabin (Johnson, 1914 [B 592-G, p. 225]). No assay results are reported. The U.S. Bureau of Mines searched for the prospect in 1979 and 1980 but did not locate it (Hoekzema and Sherman, 1983). |
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| Indication of production | None |
| MRDS Number | A010556 |
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ReferencesHoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 p.
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| Reporters | Jeff A. Huber (Anchorage) |
| Last report date | 2/4/2000 |