Manuscripts
Up to Boulder Narrows. Approximate gauge: 60-65,000 cfs. [photo reverse: Marble Canyon; Boulder Narrow (rapids) from below, upstream view. About Mile 18.8]
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Downriver from below Boulder Narrows. Close to terrain shown in Kolb photo of 1911. Lees Ferry gauge: 28,800 cfs
Manuscripts
mssMarston papers V046/0041




