Pearson 1983 87 Down to the valley to Confluencia, took photos, and camped near the Rio Sanay. Saw a few tals. Dec 10. The traps held 2 large Chelomes, other traps not disturbed (8:30 a.m.), morning warm, hazy-cloudy, calm. Returned to Barilochi at 9:30 a.m. Between Confluencia and Natural H-erfi on this Saturday morning were 4 DOR bases. At 5pm went with Javier Perez, Saho and Graciela up Cerro Otto and set 50 Shermane along a trail through dense cana and lenga on the south slope below the Piedras Blancas ski run. Set of Chelomys diggings. Also put 10 cage traps baited with bread along loops. Weather partly cloudy. Only one car on the road. Dec 11. Morning partly overcast. Ran traps on Cerro Otto at 9:00. My 10 cage traps held 1 Chelomys and 1 also lengi. The 50 Shermane in the cana caught 2 lactating alba longi. At 6:45 pm, sunny & warm, my traps held nothing, one also longi adult in the 50 Shermane of Javier Graciela. The tabanids fierce. Dec. 12 Went to the "library" of the Club Andino and stumbled to a book: Ing. Nicolas Sebeoff, 1942. "Informe Preliminar sobre los estudios de las bosques en la reserva "Sanin." Boletin Forestal correspondiente a los años 1938-1939-1940. Buenos Aires, Dir. Parques Nacionales. 221 pp. He says, for example (p24)