Manuscripts
Downriver from just inside the start of the Pre-Cambrian Section. About Mile 77, below Hance Rapid
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Start of the Pre-Cambrian section in Grand Canyon below Hance Rapid. Approximately Mile 77. Stanton caption
Manuscripts
mssMarston papers V060/0022
Pre-Cambrian just below the Tapeats on the 1931 climbing route used by Ervin
Manuscripts
mssMarston papers P007/0804
The "Wen"/"Joan" in the Pre-Cambrian section of the Grand Canyon? Probably below Bright Angel Creek
Manuscripts
mssMarston papers V149/0056
