MF Smith 1993 JOURNAL Lago Mascardi (west end), Prov. Rio Negro, Argentina Tues Nov. 30 We spent the morning processing the animals, saving three alive in thermos to preserve in formaldehyde when we get back to Bariloche. After lunch we drove up to Tronador to see the Ventisqueros Negros - black glacier, which is covered with dirt and rocks that have fallen from the surrounding rockfaces onto the glacier. At Cero Tronador we hiked up the path as far as it was open to get a closer view. The rain and clouds obscured some of the mountain, but it was still impressive. We could hear the "thunder" from which the mountain gets its name as blocks of ice broke loose and fell in avalanches. Payne was the only one watching later when the largest chunk fell. After 4pm we could start driving in the downhill direction back to Bariloche. It was raining all the way to Bariloche, which again is unusual. This is an unusually wet year following several dry years. Bariloche, Prov. Rio Negro, Argentina Wed Dec. 1 We did errands in the morning, then in the afternoon we drove out to the area next to the Hipodromo (race track) to look for suitable habitat. Although several houses are being built