Wyoming mining and mineral production for the years 1957, 1960, 1961, 1963, 1964, 1965, 1966, 1967, 1968, and 1969 (1969)

Wilson, W.H., 1969, Reports on Wyoming mining and mineral production for the years 1957, 1960, 1961, 1963, 1964, 1965, 1966, 1967, 1968, and 1969: Geological Survey of Wyoming [Wyoming State Geological Survey] Mineral Report 68-1, 60 p.