Manuscripts
Mac Terrell and Bill Mooz hiking down Prospect Valley to the rim prior to starting a float down Grand Canyon to Lake Mead. Vulcan's Throne is to the left of Terrell's head
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Starting point for drop to Vulcan Rapid from west of small cone at foot of Prospect Valley. Vulcan's Throne is upper left
Manuscripts
mssMarston papers V087/0025

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Manuscripts
mssMarston papers V087/0024

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Manuscripts
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