Manuscripts
Emery Kolb leaving the plane after his flight up to Marble Canyon down in the river gorge
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Emery Kolb walks awau from the plane at Grand Canyon after having cruised up to Marble Canyon on a course down in the river gorge
Manuscripts
mssMarston papers V065/0093
Emery Kolb leaving the river at Spencer Canyon after finding the Hyde sweep-scow at Mile 237
Manuscripts
mssMarston papers V098/0044
