marshall, 1941 June 12 5mi N & 2 mi W Sisters, 4000ft., Deschutes Co, Oregon Camp at Dry Creek Swamp - on the East edge of the swamp in a very open forest of yellow pine on rolling grassland. The swamp consists of aspen or poplars around several willows-fringed grassy meadows with much standing water. The water is dammed to dammed back artificially so that there is no water in the creek bed below the swamp. Along the creek at the E edge of the swamp there is very dense timber - lodgepole spruce a few aspens, douglas fir & abies.