Keller, John W.

1964

• Evaluation of mineral and mineral fuel potential of Archuleta, Hinsdale, La Plata, Mineral, and San Juan counties state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of Chaffee, Gunnison, Lake and Pitkin counties state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of Douglas and Elbert Counties state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of El Paso County state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of Fremont County state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of Pueblo County state mineral lands administered by the Colorado State Land Board
• Evaluation of mineral and mineral fuel potential of Saguache County, state mineral lands administered by the Colorado State Land Board