Geology and ore deposits of the La Plata district, Colorado /

by Eckel, Edwin Butt, 1906-1989, Galbraith, Frederic W. (Frederic Williams), 1903-, Williams, James Steele, 1896-1957
Published 1949

Geology and ore deposits of the Boulder County tungsten district, Colorado /

by Lovering, T. S. (Thomas Seward), 1896-1991, Tweto, Ogden, 1912-1983
Published 1953

Geology and ore deposits of the west slope of the Mosquito Range /

by Behre, Chas. H. (Charles H.)
Published 1953

Storm and flood of July 31-August 1, 1976, in the Big Thompson River and Cache la Poudre River Basins, Larimer and Weld Counties, Colorado /

Published 1979