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[[underlined]] Lake Basin [[/underlined]]

[[underlined]]  Aug. 19 [[/underlined]] Caught 2 Arvicola & Dutcher caught a Perognathus. Went down across Lake Basin in a N.E. direction & across a low ridge & through Hailstone Basin & across the rim & over to Painted Robe Creek & camped.

Came about 30 miles. The bottom of Lake & Hailstone Basins is mainly Sonoran.

There are some large ponds of alkali water & one small, stagnant stream in the Basins. There are some good patches of grass & good feed over most of the basin.

On south rim of Lake Basin the aneroid read 4400, in bottom of basin 3700, & on north rim 4000. It seems to be a true basin with no outlet, & the rim is a perpendicular escarpment of horizontal sandstone. The bottom of the valley is ridged and uneven. There are no old lake shores visible. One pond that we passed is encircled by a white crust of alkali. The soil is partly gumbo, but mostly sandy.

Sonoran plants fill the basin to bottom of rim, but are mixed with Transition species. Atriplex canescens & Sarcobatus & Eurotia & Helianthus annuus & Orizopsis are all abundant. Gauterrhiza euthamaea is one of the most characteristic  another is Artemisia frigida.

Lots of Perognathus holes seen. Thomomys hills common. Saw about 60 antelope but killed none. Saw lots of Coyote and Wolf tracks & some badger. Killed 3 Tamias minimus along Painted Robe. Pinus p. scopulorum grows on the hills.

Transcription Notes:
Can't validate "Gauterrhiza euthamaea".