Geology and Ore Deposits of the Summitville District, San Juan Mountains, Colorado.

Author:   Thomas A. Steven

Authoring agency:   Geological Survey (U.S.) (USGS)

Publication:   Washington, Govt. Print. Office, 1960.

Physical description of original:   iv, 70 p. illus., maps (part col.) 30 cm.

Series:   Professional paper (Geological Survey (U.S.)) ; no. 343

Geology and Ore Deposits of the Summitville District, San Juan Mountains, Colorado

  Attached maps:

• Plate 1 -- Reconnaissance geologic map of the Summitville district and surrounding areas

• Plate 2 -- Geologic map of the Summitville district, and section showing restored South Mountain volcanic dome

• Plate 3 -- Geologic map of the main metal-producing area of the Summitville district

• Plate 4 -- Composite map of the underground workings of the Summitville district

• Plate 5 -- Gains and losses of the major rock-forming constituents during hydrothermal alteration