Erikson, MM 1933 1934 Yuma Fort Yuma 4 Dec. 31, 1933 - moved to Yuma. 4:30-5:30, set out 104 middle sized traps on mesa 1 mi. east of town. traps set at an average of 10 feet apart from flat 35 ft. elevation sandy mesa to top of small hill made up of small coarse sharp slab rock cemented with sand; traps down from hill sit in sandy draw on one side. plants cresote, burrow weed, scattered grass. Jan. 1, 1934. 6:30-7:00 took off traps, no catches, 1 spring 5 more with bait eaten; Dipodomys sign in evidence tho not abundant. 8:00-7:30 went to Laguna Dam and sloughs above it; one of men at dam - Potholes reported that he had heard hunters speak of rails in region, but didn't hunt or know of them himself. Sloughs shallow 6 in- 2 ft. of water with oozy mud bottom and heavy growth of tules and care through out them; along them a strip from 40ft to 1 mi wide in which scattered willows stand; mostly water killed by flooding at some time. ground dry now with short sparse grass. Beyond this a strip of live willows, arrowweed, and some willo mesquite before bare hills are reached. set three dozen traps in runs of tules well out from shore. Ran traps just before leaving slough no catches. Birds seen on list of birds for region.