Page 84 - Vol. 1 Walks In The Black Range - 2nd Edition

Along Warm Springs Wash, view from Snake Mine Road, east of Hillsboro, New Mexico
The Rattlesnake Mine, and the Eureka Tunnel in particular, is documented in the video: "Mines of the Hillsboro Mining District - Volume One".
A number of claims are in this area (see the Sierra Consolidated prospectus - in the Opportunity Mine discussion - for an idea of the claims which are the basis for the operation pictured below). As with most of the mines in this area, mineralization occurred in the veins which extend from the Copper Flat site. The veins generally terminated at
the major fault which runs down Warm Springs Canyon, crosses NM-152 about half way down the curves into town, and heads south crossing Percha Creek near the old mill site.
The diagram of the mine (at the top of the next page) is from "The Geology and Ore Deposits of Sierra County, New Mexico" by George Townsend Harley, p. 152. It shows