Geo-volution the evolution of Colorado's geological and geotechnical engineering practice : proceedings of the 2006 Biennial Geotechnical Seminar, November 10, 2006, Denver, Colora...

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Colorado goes to the fair World's Columbian Exposition, Chicago, 1893 / ‌ Smith, Duane A.

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Going for gold the history of Newmont Mining Corporation / ‌ Morris, Jack H.

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Geo-velopment the role of geological and geotechnical engineering in new and redevelopment projects : proceedings of the 2008 Biennial Geotechnical Seminar, November 7, 2008, Denve...

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Geotrends the progress of geological and geotechnical engineering in Colorado at the cusp of a new decade : proceedings of the 2010 Biennial Geotechnical Seminar, November 5, 2010,...

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GeoChallenges rising to the geotechnical challenges of Colorado : proceedings of the 2012 Biennial Geotechnical Seminar, November 9, 2012, Denver, Colorado /

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Off the main lines a photographic odyssey / ‌ Hofsommer, Donovan L.

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Rocky Mountain Geo-Conference 2014 : proceedings of the 2014 Rocky Mountain Geo-Conference, November 7, 2014, Lakewood, Colorado /

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The Hoskaninni papers : mining in Glen Canyon, 1897-1902 / ‌ Stanton, Robert Brewster, 1846-1922

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