Geology and ore deposits of the La Plata district, Colorado,
Eckel, Edwin Butt, 1906-
Geology and ore deposits of the La Plata district, Colorado, by Edwin B. Eckel with sections by J. S. Williams, F. W. Galbraith and others. Prepared in cooperaton with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund. - Washington, U.S. Govt. Print. Off., 1949. - vii, 179 p. illus., maps. 29 cm.
Part of illustrative matter folded in pocket.
Bibliographical footnotes.
gs 50000051
Geology--Colorado--La Plata district.
Ore deposits--Colorado--La Plata district.
QE75 / .P9 no. 219
557.88
Geology and ore deposits of the La Plata district, Colorado, by Edwin B. Eckel with sections by J. S. Williams, F. W. Galbraith and others. Prepared in cooperaton with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund. - Washington, U.S. Govt. Print. Off., 1949. - vii, 179 p. illus., maps. 29 cm.
Part of illustrative matter folded in pocket.
Bibliographical footnotes.
gs 50000051
Geology--Colorado--La Plata district.
Ore deposits--Colorado--La Plata district.
QE75 / .P9 no. 219
557.88