OF-01-12 History OF-01-12 History, Geology, and Environmental Setting of the Lienhart Mine, Pike/San Isabel National Forest, Chaffee County, Colorado
OF-01-13 History OF-01-13 History, Geology, and Environmental Setting of Selected Mines in the Chalk Creek Mining District, Pike/San Isabel National Forest, Chaffee County, Colorado
OF-01-14 History OF-01-14 History, Geology, and Environmental Setting of the Griffin and Wilkesbarre Mines, Pike/San Isabel National Forest, Lake County, Colorado
WAT-2000-01 Scoping Report for Ground-Water Atlas of Colorado WAT-2000-01 Scoping Report for Ground-Water Atlas of Colorado
OF-00-18 Late Cretaceous Formation Geologic Mapping OF-00-18 Late Cretaceous Formation Geologic Mapping, Outcrop Measured Sections, and Subsurface Stratigraphic Cross Sections, Northern La Plata County, Colorado
OF-00-16 Naturally Degraded Surface Waters Associated with Hydrothermally Altered Terrane in Colorado OF-00-16 Naturally Degraded Surface Waters Associated with Hydrothermally Altered Terrane in Colorado
IS-54 Colorado Mineral and Mineral Fuel Activity IS-54 Colorado Mineral and Mineral Fuel Activity, 1999