Copyright © 2004 by Ana Minerva Bonilla                                            Updated: 11/27/05 18:13

The Weekend Miner

(http://theweekendminer.com)

California

Inyo County

Hanging Valley Mine : (37.19.41N by 118.40.34W; USGS – Mount Tom map) (Tungsten)

A second reference (#3) shows the main entrance to this underground, past producer at 37.19.40N by 118.40.30W.

Various USGS References; 4/1/79 Report by Luis A. Fraticelli : The mine is also known as the J. and M. Millovich. It is located at about 1,800 feet elevation and referenced at 37.19.52N by 118.39.56W; R.030E; T.007S; Section 22 of Inyo County. It is shown on some versions of the 250K USGS Mariposa map. The ore consists primarily of scheelite, with garnet, quartz and epidote present. The host rock is hornfels and granite; with a thick talus material covering the extension of the tactite layer. The small ore body, about 95 feet long and 5 feet wide strikes north 55 degrees. Some production was recorded in 1942 (100 lbs of 1%+ WO3) and again in 1948 and 1949 (3,000 tons of 1.25% WO3). The workings are described as a 15 foot shaft and a 65 foot adit, which was later extended to 380 feet. There are two crosscuts and a 40 foot inclined winze, approximately 70 feet from the start of the second crosscut. This deposit is typical of those near Horton Lake, being relatively small and low-grade.