Thacher 1959 Species Account Apr. 4 Thomasys botaer p. 1 2.2 mi. S, 0.8 mi. W Herlong (sanddunes), 4140 +/- ft., Lassen Co. Calif. This morning I heard three gophers (835-837) from the traps I'd set here last night. The sand dune here is on the east side of the Long Valley Creek. There is almost no vegetation on the dune except some low broad-leaved plants that is found for the first 10-15 ft up from the base of the dune. The mounds that mark the gophers' activity are very conspicuous on the bare sand. As one digs beneath the sand it is quite moist just an inch or so below the surface. I kept uncovering parts of plants under the sand as I dug in it making my sets. Apparently the sand has drifted over this vegetation rather recently. I suppose this covered vegetation provides food for the gophers here since some burrow systems are a hundred yards or more from any surface vegetation. Yesterday, before I found these mounds, gopher workings on the dune I had spent an hour or so driving and walking over the sagebrush-covered flats just to the east of here without seeing any gopher mounds. Apr. 4 0.4 mi. S, 1.6 mi. W Herlong, 4080 +/- ft., Lassen Co. Calif. Apr. 4 At this locality which is along the N-S Road from US 395 to Herlong, just S of the junct. where one turns east to Herlong, I found gopher workings at the west side of the road yesterday.