KP-2626-R2-Klamath Project -- TULE LAKE SUMP 2, Specifications No. DC-5483, Q-3-b Lateral. D-6 Caterpillar tractor pulling a LeTourneau 4'x4' dual-drum sheepsfoot roller, compacting lining and embankment across entire lateral prism at Sta. 51+00; August 18, 1961; Photo by J.A. Renning