Manuscripts
Up Toroweap Valley; Vulcan's Throne at edge of Canyon at R
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Up Toroweap Valley; Vulcan Throne at edge of Canyon. Toroweap Point is upper right
Manuscripts
mssMarston papers V083/0129
View up Toroweap Valley; Vulcans Throne at the edge of the Canyon. The head of Vulcan Rapid can be seen at the mouth of Prospect Canyon at lower left
Manuscripts
mssMarston papers V083/0131
Prospect Valley. Vulcans Throne and Toroweap Valley in distance
Manuscripts
mssMarston papers V083/0103
