J.P. Myers 1973 Journal Privial Route #307 between Acheral and Antiguo Quilmes, Provincia de Tucuman, Argentina 5 October cont'd Rock outcroppings and eroded gullies, many with running water in them were the dominant geo-form other than the broad loose-soiled slopes. At 9700' there was an obvious change in the soil, the amount of loose rock in it, and the density of the vegetation (it became more so). This continued up to the top of the pass (9900') and down the other side, with the land becoming more xeric. Many barrel-type cacti were present from ~9000' down to ~7000'. At the bottom, near the Rio Santa Maria, there was a low scrub forest developed, much more water down there than I expected. At El Banado there was a small holding pond and series of water-filled ditches. Many swallows (sp?) and some Southern lapwings. No whistlers. Sandpipers. On the way down I spotted what were probably 3 Andean condors, but they disappeared before I got the scope on them. We went back up and over the Pass, spending the night at 8900' on the SE side. Laguna Los Flores Grandes on Rio Salado at Puente Romero, ~27 Km SW of San Miguel del Monte by road, Provincia de Buenos Aires, Argentina 11 Oct After spending the previous night 3 km N by road from Promontory we were unable to reach the bridge the previous evening because of a mix of good roads [we got stuck] soaked by rain. Lotti & D arrived at PR approximately 08:30. Water level is much higher than it was 15 Sept. In fact, + may be several feet above the level present then. The south side road is impassable; the north side (level) is not entirely at all more for skaters (+ there aren't any) - water covering all mud up to grass, with white foam bordering much of the edge. However, 75 km north