Manuscripts
The Blade or Steamboat Rock. From Dinosaur National Monument. The mouth of the Yampa is lower right
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The Echo wall of Steamboat Rock; mouth of Yampa River on right
Manuscripts
mssMarston papers V112/0076

Up the Yampa River from Harpers Corner. Steamboat Rock at lower center
Manuscripts
mssMarston papers V112/0050

National Park Service in Tepee Rapid on the Yampa River. Dinosaur National Monument
Manuscripts
mssMarston papers V112/0009

Green River Investigation: Lower End of Steamboat Rock at Mouth of Yampa
Manuscripts
mssMarston papers V111/0163.04

