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- catalog contributor b1768549.
- catalog created "1986.".
- catalog date "1986".
- catalog date "1986.".
- catalog dateCopyrighted "1986.".
- catalog description "Bibliography: p. 37-38.".
- catalog extent "1 portfolio (iv, 50 p., 7 folded leaves of plates) :".
- catalog isPartOf "U.S. Geological Survey bulletin ; 1619".
- catalog issued "1986".
- catalog issued "1986.".
- catalog language "eng".
- catalog publisher "[Washington, D.C.] : U.S. G.P.O.,".
- catalog spatial "Colorado Boulder County.".
- catalog spatial "Colorado Weld County.".
- catalog subject "Coal Colorado Boulder County.".
- catalog subject "Coal Colorado Weld County.".
- catalog subject "Natural gas Colorado Boulder County.".
- catalog subject "Natural gas Colorado Weld County.".
- catalog subject "Petroleum Colorado Boulder County.".
- catalog subject "Petroleum Colorado Weld County.".
- catalog title "Coal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld Counties, Colorado / by Frank D. Spencer.".
- catalog type "text".