Colorado Trail Databook, 8th EditionThe Colorado Trail Foundation · First published 2021Open the Tome
Colorado Trail Databook, 7th EditionColorado Trail Colorado Trail Foundation · First published 2018Open the Tome
The Colorado Trail The Official Guidebook Of The Colorado Trail FoundationColorado Trail Foundation · First published 2011Open the Tome
Guide for mountain trail developmentColorado Mountain Trails Foundation. · First published 1976Open the Tome
Rocky Mountain Science Council inventory of faculty research interests, Rocky Mountain colleges and universitiesColorado State University. Research Foundation. · First published 1963Open the Tome
The transportation of solids in steel pipe-linesColorado School of Mines. Research Foundation. · First published 1963Open the Tome
Soil and water abstracting project, under grant #9457Colorado State University. Research Foundation. · First published 1960Open the Tome