yaveta or low thorn hummocks and a few 5' thorn bushes or thicket. Stopped at Estancia Valle Hermosa, no dates. Then drove west hoping for trees for the night, but all pure Pampa to a big military base at the border. Beautiful snow mtns beyond. Turned back and camped 4 km w Soga Blanca, almost pure bunchgrass in rolling hills. I put about 25 traps in bunchgrass and in a sparse copse of thornbush. Ante set 20 traps in pure bunchgrass (sandy soil). Day cloudy. Afternoon windy, temp 6 C at 9 pm, still windy, scattered clouds. Nov. 5 Wind all night + still windy in morning. Smallest trap 3 C. My traps had 2 Elymmodontia (bunchgrass), 1 Abodon xantho (thorn), 1 horse muss (thorn), 1 Phyllotus (thorn, stones but no rocks). Ante caught 1 abodon xantho and 1 Reithrodon. The chest-high thorn copse is surprisingly good wind shelter. Surely the mice spent most of its life in this isolated copse. Discarded: 1 baby Elymmodontia (7gr.) 1 F Abodon xantho with scars + CL. Not bad. Left 10 am, saw 1 rhea and the guanacos again on the way back to Ruta 40, then south to Perto Moreno 2 pm. Saw 2 more rheas and a few more guanacos, one half-grown. Fields of dandelions in bloom, and reed at Perto Moreno, also lilacs. Between Perto Moreno and Bajo Carrizales we drove about 5 km off the road toward the Cuevas de San Mates but when we stopped at a puesto for road directions the mud and the road was impassable. The grader was working on it, however. The cave seems to be on the Rio Pinturas. Stopped for the night where the road crosses the Rio Ecker, 65 km S