Page 111 - The Geology and Ore Deposits of Sierra County, New Mexico - Bulletin 10

110 GEOLOGY AND ORE DEPOSITS OF SIERRA CO., N. M.
some shipments with visible tellurides ran comparatively low in gold.
Due to its inaccessibility and to the high concentration of gold and silver only in very small pipes of ore, it would seem that this mine could best be worked on a small scale similar to past operations, with perhaps a one- or two-drill compressor plant installed, and a small hoist. Future development should look toward finding new fractures by advancing the tunnel on the footwall side of the dike. It would also be well to investigate both walls of the dike somewhat below the level of the tunnel and for considerable distance along both walls.
LOG CABIN MINE
At the Log Cabin mine a gold vein is associated with the silver deposits. The writer did not examine this vein, but from the descriptions it is believed to be of the same age as the Look- out vein and later than the silver ores. The workings are fairly extensive in the underground part of this mine, and it is reported that ore worth at least $50,000 is blocked out and so located that under normal prices for silver and lead it can be extracted and shipped at a moderate profit.
STANDARD METAL MINING & MILLING CO. PROPERTY
The Standard Metal Mining & Milling Co. owns or controls 25 claims in the Tierra Blanca district, and appears to be a reor- ganization of the old Bi-metallic Mining and Milling Co., includ- ing the Midnight, Wausa, and Argus claims, which was effected in 1926. The ore• forms flat-lying deposits in the limestone, which have been cut by later rhyolite dikes. The ores consist of mixed oxides and sulphides of silver, lead and copper, and some gold. For each ounce of gold in the ore there is about 18 ounces of silver. Development is by two shafts 90 and 135 feet deep ; three tunnels 60, 84, and 373 feet long, according to report ; and a moderate-sized plant equipped with drilling machinery and pumping equipment.
It is said by this company that ore has been found through a distance of 300 feet and a width of 22 feet, and that ore reserves consist of 4,500 tons valued at $22 per ton.
CARPENTER DISTRICT
LOCATION AND AREA
The Carpenter district is on the west slope of the Black Range, 6 miles southwest of Kingston. Most of it is in Grant County, and all mining locations to date have been recorded there, but some of the larger working are close to the Sierra County boundary, and ore may be discovered across the county line. For this reason the district is discussed in the present report.
The mines are most easily reached by trail from Kingston,