KP-2402-R2 - CLEAR LAKE - Klamath Project. Soil sampling procedure. Veimeir soil sampling tube, about 1 1/8" in diameter being driven into soil on bottom of Clear Lake. The tube is inside 3" pipe which has been...

KP-2404-R2 - CLEAR LAKE - Klamath Project. Pumping air into bottom section of vehmeir tube to extrude soil sample. Winch at right is used to lower and raise 3" pipe in center of raft. Small winch at corner of...

KP-2401-R2 - CLEAR LAKE - Klamath Project. Raft is propelled by one 15 H.P. and one 10 H.P. outboard motor; October 16, 1957; Photo by K. J. Greene

KP-2403-R2 - CLEAR LAKE - Klamath Project. Lifting and unscrewing sections of Vehmeir tube; October 16, 1957; Photo by K. J. Greene

KP-2405-R2 - CLEAR LAKE - Klamath Project. Sample is shown lying ahead of sampling tube. Selected samples are stored in carton shown; October 16, 1957; Photo by K. J. Greene

KP-2406-R2 - CLEAR LAKE - Klamath Project. Dave Bunger is sighting two buoys with a sextant. At least 3 located points are used for a fix on the map; October 16, 1957; Photo by K. J. Greene

KP-2560-R2-Klamath Project - CLEAR LAKE GROUND FRACTURE, Section 16, T. 46 N., R. 7 E. Exploratory hole showing width of crack 18 feet below original ground. Soil texture first 6 feet gravelly clay loam, from...

KP-2509-R2- Klamath Project - CLEAR LAKE - Ground Fracture - Southwest Shore, Section 16, T. 46 N., R. 7 E., M.D.M. Close-up view of one of the fracture channel enlargements showing the soil and the fracture...

KP-2559-R2-Klamath Project - CLEAR LAKE GROUND FRACTURE, Southwest shore, Section 16, T.46 N., R 7 E. View showing washout place in fracture approximately 15 feet below surface. Fracture narrows down in places,...

KP-2562-R2-Klamath Project - CLEAR LAKE GROUND FRACTURE, Section 16, T.46 N., R.7 E. General view of fracture looking south from water's edge, showing depression extending out into water from open end of...