H. Thomas Hemborg

Evaluation of the mineral and

Evaluation of the mineral and mineral fuel potential of Cheyenne County state mineral lands administered by the Colorado State Land Board

2001

Gas production characteristics

Gas production characteristics of the Rulison, Grand Valley, Mamm Creek, and Parachute fields, Garfield County, Colorado

2000

Evaluation of mineral and mine

Evaluation of mineral and mineral fuel potential of Phillips County state mineral lands administered by the Colorado State Land Board

1999

Evaluation of mineral and mine

Evaluation of mineral and mineral fuel potential of Sedgwick County state mineral lands administered by the Colorado State Land Board

1999

Spanish Peak field, Las Animas

Spanish Peak field, Las Animas County, Colorado

1998

Active permitted mine operatio

Active permitted mine operations in Colorado, 1995-96

1996