KP-1305-R2 Klamath Project. Boundary Dam Materials Investigations. Region II. Carr Butte area trench pit #2 near top of the Butte coarse, red volcanic cinders; February 6, 1947; Photo by Dorwin Grise

KP-1306-R2 Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area showing red volcanic cinder material at TP #2 near top of Butte; February 6, 1947; Photo by Dorwin Grise

KP-1308-R2 Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area. TP#3 on gravel ridge NW slope of Butte showing black sandy gravel; February 6, 1947; Photo by Dorwin Grise

KP-1309 -R2 Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area. TP#3 on gravel ridge NW slope of Butte showing black sandy gravel; February 6, 1947; Photo by Dorwin Grise

KP-1311-R2 Klamath Project. Region II. Boundary Dam Materials Investigation. TP #1 west side of Butte in draw. Red volcanic cinders; February 6, 1947; Photo by Dorwin Grise

KP-1301-R2--Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area PH #8 showing small pile of sandy silt material found on the lower part of the NW slope of Carr Butte; February...

KP-1302-R2--Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area PH #8 showing small pile of sandy silt material found on the lower part of the NW slope of Carr Butte; February...

KP-1303-R2--Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area PH #9 showing rotary drill and drilling operations, sand silt material on lower part of NW slope of Carr Butte;...

KP-1304-R2--Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area PH #9 showing rotary drill and drilling operations, sand silt material on lower part of NW slope of Carr Butte;...

KP-1307-R2 Klamath Project. Region II. Boundary Dam Materials Investigation. Carr Butte area. View from top of Butte looking toward Boundary Damsite showing area where a road to Carr Butte will be;...