1952 P. PEARSON almost than I have ever seen; also many chipmunks. Vegetation still thick fir, spruce, alder, aspen. Moved traps lines to wet meadow below camp and along stream in water shrub sets -- about 30 traps. Bote again at ducks but didn't get any. 2/17/6 3 zophus in wet meadow and 2 Meristina. No shame or Peromyscus. Left at 10:30 for Mazanita. Went up our drainage for 3 1/2 line and found myself on a thinly forested peak but separated from Truchas Peak by a saddle of at least 500ft drop. The ridge to the west of camp or the drainage beyond that would have taken me up to Truchas Peak. My peak had an estimated altitude of 12,500 ft. and was mostly fragmented quartz growing to spruce and some fir, a few aspens still. Set 30 museum species in steep rocky chute growing to broad-leaved alpine flowers and 14 off cross-country in open spruce burn. The chute had droppings of mammals in the cliffs on the side and holes, cuttings, and tiny droppings of some peculiar rodents: in the dense flowers. Birds seen: grouse (numerous), thrush, grosbeak, junco, chickadee and robin (hard). Chipmunk and chickaree almost at tops. Might didn't seem any colder than in our camp at 10,000ft. 2/18 In traps 2 Peromyscus maniculata and one Sorex. Left for home about 7:30 a.m. Trap lines at home had 1 chipmunk, 2 zophus, about 2 Meristina and 1 Peromyscus. Rest of day shining.