HISTORY of MOUNT DIABLO COAL MINING DISTRICT Contra Costa, CA 1969 M.A. Thesis
THE GEOGRAPHIC FACTORS THAT INFLUENCED THE LIFE-SPAN OF THE MOUNT DIABLO COAL MINING DISTRICT, CONTRA COSTA, CALIFORNIA. By Heinz Walter Gerlach.
M.A. THESIS, San Francisco State College, 1969.
Self-produced photocopy, red vinyl covers, plastic spiral bound, 8.5x11 inches, viii + 69 pages, pages copied on one side only.
Sections include: The Fuel Situation in the San Francisco Region 1860-1893, including Problems of Coal Storage; The Physical Site of the Mount Diablo Coal Mine, including the Geology of the Mount Diablo Coal Mining District Mining Methods and the Cost of Mining Operation; and the Economics of the Mount Diablo Coal Mining District.
GOOD condition, there are the usual copy-machine edge and margin gray lines and marks.
Interesting thesis on Mount Diablo Coal Mining.
This is the only copy I have or have ever seen.