leason 1971 Left camp about 7 a.m., and ground up the valley, through the 1st gorge. Truck very tired and had to make running starts and get out and push simultaneously. Shopping and photoring in charming Alca, then on up over the divides (15,000 ft). Truck couldn't make it over top so an hour or more delay while I cleared filter and re-set the points (which fixed got things considerably). Finally over the top, AK and APP with swocks. Lots of rich country, much of it beautifully grazed with alpacas, llamas, and sheep. Fellth if any Festuca arthophylla and no tola, almost no yaritos, Saw-mouse cross the road. Lots of Bolivian geese, some lofewingz, gulls, ibises. One swoopjay lake-wooden had 100 ? geese feeding on it (impairs?) and apparently courting. Saw no turacos although second good for Notothorax. Camped at 11,160 ft in a recently harvested grain field, set 19 small Sherman around bags of stones in the steep fields. Some haps with Barberin and a stiff-mulled bush with ericaceous blossoms. Aug 22 Clouded up over next. a.m. 44°. My traps held 8 Calomys. Ante had 6 traps out and caught 2 Calomys. Drive to Huevo for level, then down to the Rio Uretero where we camped at 9000 ft in cactus-scrub near the river (more muddy). The land west and south of Huevego is heavily used; fields wherever possible, grazing by sheep + cows + burros. I put out small Shermons among walls & boulders, opuntia, tall cholla cactus, thorn bushes, other shrubs, and