KP-1238-R2 - Klamath District - Modoc Unit - Coppeck Bay Area. The core trench under the left bank is excavated large to furnish sufficient material for building of the right lateral bank after it has been partially built up with carryall taking material from the parallel drain section. The left lateral bank will be constructed with the balance of excavation from the parallel drain; August 14, 1946; Photo by D. E. Grise