1. Map showing anomalous distribution of lead, tin, and bismuth in stream-sediment concentrates from the Sierra Cuchillo-Animas uplifts and adjacent areas, southwestern New Mexico [cartographic material] Yale Public content 1975. 2013-08-20T13:42:49Z. 2013-08-30T19:15:55Z. The Survey. English. Public. New Mexico and Sierra County.