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Markings on basalt at Witch Pool, west side of upper Toroweap Valley.
View south toward Paiute cave sinkhole in Pleistocene basalt flow, 1 mile southeast of Hat Knoll.
Aerial view southeast toward Quaternary travertine deposits of Spencer Springs (middle center of photograph) on Bright Angel Shale in Spencer Canyon.
Salty spring puddle, south side of river mile 77.4, below Hance Rapids.
Small spring in Mooney Falls Member of Redwall Limestone, east side of Little Colorado River, east of and downriver from Blue Spring Fault.
Fold in Vishnu Schist, north bank of river mile 92.0.
View northeast toward Neoproterozoic stromatolites in Awatubi Member of Kwagunt Formation, southeast side of Nankoweap Butte.
Upper Fence Spring, east side of river mile 30.5. Spring is on downthrown side of Fence Fault and issues from Mooney Falls Member of Redwall Limestone.
Radial cooling joints in basalt flow, northeast wall of river mile 184.0.
View southwest and downriver toward west wall of Marble Canyon, from river mile 33.7. Redwall Limestone cliff on right side of photograph.
View north and upriver toward Esplanade Sandstone cliffs of Marble Canyon from north side of Tanner Wash, above river mile 14.5.
View southwest toward South Canyon from Shinumo trail at Redwall Limestone level, east side of river mile 31.0.
Aerial view north toward Sixtymile Creek, Butte Fault, and East Kaibab Monocline, northwest side of Chuar Butte. Precambrian west-dipping strata overlain by east-dipping Cambrian Tapeats Sandstone (left center of photograph), Paleozoic overturned and east-dipping strata on east side of Butte Fault (right center of photograph).
Aerial view northwest toward Carbon Butte (photograph EL30) and landslide block of Redwall Limestone in Precambrian Chuar Syncline that forms Carbon Butte between east and west Carbon Creek, about 1.5 miles west of river mile 63.0.
View northwest from Redwall Limestone rim toward eastern part of Monument Fold in Tapeats Sandstone at bottom (photograph CF02) of unnamed canyon south of river mile 116.2.
View east from Tuckup Trail just north of Tuckup volcano toward Tuckup Canyon basalt flow that flowed east into upper Tuckup Canyon. Red slope is Hermit Formation.
View looking east out of Buck Farm Canyon toward east wall of Marble Canyon, Redwall Limestone (sheer cliff), Temple Butte Formation (purple strata), and Muav Limestone (lower ledges), east side of river mile 41.2.
Aerial view north toward small fault (center of photograph) in north wall of Diamond Creek canyon. Light-gray Redwall Limestone cliff overlies dark-gray Temple Butte Formation ledges, brown cliff of unclassified dolomite, dark-gray cliffs and slopes of Muav Limestone, and Bright Angel Shale slope at bottom.
View north and upriver from Redwall Limestone level, west side of river mile 31.5 toward Fence Fault in Supai Group of strata, east of river mile 30.5 (upper left side of photograph).
Aerial view north toward The Dome across the Colorado River canyon from Esplanade Sandstone level (photographs CS56, CS57), from west side of National Canyon, just south of river mile 168.2.
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