San Juan & New York Mining & Smelting Company, Superintendent's House, State Route 160, Durango, La Plata County, CO

Significance: It is one of two remaining structures at the San Juan and New York Mining and Smelting Company (SJ&NY) plant in Durango. It is located approximately .2 miles north of the stack. SJ&NY grew to become the largest smelting operation in the San Juan Mountain mining region, originally processing gold, silver, lead, and copper primarily for eastern manufacturing concerns. Beginning in the 1940s, the plant processed uranium for WWII research in Los Alamos, and post-war security program.
Survey number: HAER CO-38-B
Building/structure dates: ca. 1860 Initial Construction