Manuscripts
Start of San Juan Boat trip, 6 miles west of Bluff. The boatman in the distant boat appears to be Bert Loper
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Start of San Juan survey 6 miles west of Bluff. The boatman in the distance is Bert Loper
Manuscripts
mssMarston papers V179/0133

Green River Investigation: Bert Loper--Head Boatman at Rippling Brook
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mssMarston papers V111/0158.02

Bert Loper at left and kelly W. Trimble at right. Bert was in his prime as head boatman of the USGS San Juan Survey. Glen Canyon
Manuscripts
mssMarston papers V160/0100
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Bert Loper
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
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Diary of Bert Loper, trip from Hite to Lee's Ferry and return
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers
