Colorado Geological Survey

• Bulletin - Colorado Geological Survey
• Bulletin - Colorado Geological Survey
• Bulletin
• Bulletin - Colorado Geological Survey, Issue 13
• Bulletin - Colorado Geological Survey; Volume 13
• Colorado coal analyses, 1975 (analyses of 64 samples collected in 1975)
• Colorado Geology 2023 Calendar
• Colorado Geology Calendar 2026
• Guidelines and criteria for identification and land-use controls of geologic hazard and mineral resource areas
• Mineral waters of Colorado
• Some anticlines of Routt county, Colorado
• Some anticlines of western Colorado