CN-12-201-246NA Klamath Project - Oregon-California. View showing location of Laser Beam command post in the middle of the field. The tripod, which supports the command post, was set up and leveled adjacent to the drain to be constructed. This unit was always set up on the left side of the drain line (looking upstream) and it was situated about 50 ft. from line; November 1972; Bureau of Reclamation photo by D. W. Stein