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Upstream view of Marble Canyon from right bank at Dam Site #3. 31.7 miles below Paria River. Water surface elevation 2875.
Four small boats are pulled up to the shore on the viewer's left of the Colorado River, the canyon walls rise all around.
Downstream view of Marble Canyon from big cave on L. bank. 32.6 miles below Paria River. Cave 400 ft. wide, 300 ft deep, up to 80 ft high.
A rock overhang in the canyon wall over a beach on the shore of the Colorado River. A man stands on a sand bar near a small boat.
Remains of trapper outfit in cave, Marble Canyon.
Six men posing in a shallow cave with shovels, buckets, tools and other equipment from an abandoned trapping camp.
Crystal Cave, Giant Forest
Man standing on flowstone covered slope next to crude ladder.
Crystal Cave, Giant Forest
Two men seated on cave floor with calcite formations surrounding them. Cave passage recedes in the background.
Lava Cave, foot hills of Lassen Peak. A typical ice cavern
Well lit image of a lava tube cave.
Williams Canyon near Manitou. (Limestone formation).
A sandstone canyon with a sign visible on the left side that reads "CAVE."
Carlsbad Cave.
Stalagmites in Carlsbad Caverns.
Carlsbad Cave.
Stalagmites and stalactites in Carlsbad Cavern.
Carlsbad Cave.
Men posing with cave formations in Carlsbad Caverns.