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1276 Geology field trip, Fall 1929: Black Canyon of the Colorado1929Image/StillImageuum_map
1277 Geology field trip, Fall 1929: Black Canyon of the Colorado1929-09Image/StillImageuum_map
1278 Geology field trip, Fall 1929: Black Canyon of the Colorado1929-09Image/StillImageuum_map
1279 Geology field trip, Fall 1929: Colorado River - at Laguna1929Image/StillImageuum_map
1280 Geology field trip, Fall 1929: Colorado River - At Laguna1929Image/StillImageuum_map
1281 Geology field trip, Fall 1929: Colorado River - At Laguna1929Image/StillImageuum_map
1282 Geology field trip, Fall 1929: Colorado River - At Laguna1929Image/StillImageuum_map
1283 Geology field trip, Fall 1929: Colorado River - at Laguna1929Image/StillImageuum_map
1284 Geology field trip, Fall 1929: Colorado River, near Yuma1929Image/StillImageuum_map
1285 Geology field trip, Fall 1929: Cotton field near Yuma - Sadie, Eva1929Image/StillImageuum_map
1286 Geology field trip, March 1927: Century plant - Toroweap1927-03Image/StillImageuum_map
1287 Geology field trip, March 1927: Century Plant - Toroweap - Eugene1927-03Image/StillImageuum_map
1288 Geology field trip, March 1927: Cinder Cone - Near Toroweap1927-03Image/StillImageuum_map
1289 Geology field trip, March 1927: Cinder cone - near Toroweap1927-03Image/StillImageuum_map
1290 Geology field trip, March 1927: Eugene at Toroweap1927-03Image/StillImageuum_map
1291 Geology field trip, March 1927: Eugene at Toroweap1927-03Image/StillImageuum_map
1292 Geology field trip, March 1927: Eugene at Toroweap1927-03Image/StillImageuum_map
1293 Geology field trip, March 1927: Toroweap - Lava Flows [01]1927-03Image/StillImageuum_map
1294 Geology field trip, March 1927: Toroweap - Lava Flows [02]1927-03Image/StillImageuum_map
1295 Geology field trip, March 1927: Toroweap - Lava Flows [03]1927-03Image/StillImageuum_map
1296 Geology field trip, March 1927: Toroweap, Grand Canyon - Dr. Inglesby1927-03Image/StillImageuum_map
1297 Geology field trip, March 1927: Toroweap, Grand Canyon - Lava flows, from Mt. Trumbull1927-03Image/StillImageuum_map
1298 Geology field trip, March 1927: Toroweap, Grand Canyon [01]1927-03Image/StillImageuum_map
1299 Geology field trip, March 1927: Toroweap, Grand Canyon [02]1927-03Image/StillImageuum_map
1300 Geology field trip, March 1927: Toroweap, Grand Canyon [03]1927-03Image/StillImageuum_map
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