Manuscripts
Mantle Ranch in Hells Canyon of the Yampa River; Mile 11.8
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![Mantle Cave? Mile 11. Dinosaur National Monument [photo reverse: Yampa canyon cave]](/_next/image?url=https%3A%2F%2Frail.huntington.org%2FIIIF3%2FImage%2F22APN4IUHEQ5%2Ffull%2F%5E360%2C%2F0%2Fdefault.jpg&w=750&q=75)
Mantle Cave? Mile 11. Dinosaur National Monument [photo reverse: Yampa canyon cave]
Manuscripts
mssMarston papers V112/0016

Bus Hatch running a motor on a 10-man inflated boat. Four miles below Mantle's Ranch on the Yampa River
Manuscripts
mssMarston papers V182/0048

Basket from Yampa canyon cave, now in University of Colorado Museum, Boulder, Colorado. Typical of artifacts found in Mantle Cave, Mile 11
Manuscripts
mssMarston papers V112/0018

Obsidian knife from Yampa Canyon cave typical of artifacts found in Mantle Cave. University of Colorado Museum, Boulder, Colorado
Manuscripts
mssMarston papers V112/0019
![[Print from a stereo:] Mouth of Lodore Canyon; Yampa River on right](/_next/image?url=https%3A%2F%2Frail.huntington.org%2FIIIF3%2FImage%2F22APN4IG63GC%2Ffull%2F%5E360%2C%2F0%2Fdefault.jpg&w=750&q=75)
[Print from a stereo:] Mouth of Lodore Canyon; Yampa River on right
Manuscripts
mssMarston papers V112/0066
