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- Description of the Engineer Mountain Quadrangle
- San Juan National Forest Forest-Scale Roads Analysis Report
- The Mountain Geologist Bibliography 1964
- Newsletter of the Colorado Native Plant Society the YEAR IN
- From the Bottom of the Ocean to the Top of the World (…And Everything in Between): the Geology of Pagosa Country
- Class G Tables of Geographic Cutter Numbers
- The Bees of Colorado (Hymenoptera: Apoidea: Anthophila)
- San Juan Volunteer Handbook 2021 Version San Juan Mountains Association
- Colorado and Utah Rockies Utah Rockies
- Charles Whitman Cross
- Geology and Uranium Deposits of Elk Ridge and Vicinity San Juan County, Utah
- Rocky Mountain Section Meeting Is Dedicated to Grant Mossop’S Memory
- Part I Tomlinson Library SCA Shelf List
- Animas River System
- Geology and Uranium Mineralization of the Florida Mountain Area, Needle Mountains, Southwestern Colorado by , James D
- Weminuche Backpacking Trip, September 2012 Pine River To
- 3. Wheel of Fortune. 8. Hancock. 32. Charter Oak. 33. National Belle. 36
- Rock Units of the Precaittbriail Basement in Colorado
- 'En Erg Aec-Rd 11 !
- History Colorado Photo Subject File Collection - Index
- A Survey of the Recreational Resources of the Colorado River Basin
- Geology and Mineral Deposits of the Needle Mountains District, Southwestern Colorado
- Timberline 1
- Needle Mountains Folio No
- Precambrian Geology of the Needle Mountains, Southwestern Colorado
- Guidebook Excerpts
- A Brief Geological History of the Precambrian Rocks of the Needle Mountains, Southwestern Colorado Fred Barker, 1968, Pp
- Proterozoic Geology of the Western and Southeastern Needle Mountains, Colorado
- 8Cr0phulabiaceae of Tie Central Rocky Mountain
- [Italic Page Numbers Indicate Major References] Abitibi Volcanic Belt, 129 Actinolite, 125 Albi Te, 115 Albuquerque, New Mexico