Keene, H. 1980 19 November, rather like cloud forest with rather tall (continued) trees in places. Arrived Machu Picchu station ~1115, took bus up series of switchbacks - ~2000 feet up in < 20 minutes. suddenly one rounds a bend, sees the ruins and it is spectacular. We walked around the ruins for ~ 2 hours w/ our guide before eating lunch at the restaurant. Weather was cloudy w/ occasional drizzle when we arrived, but by 1515 when I started down it was hot and sunny. After sun came out I saw 2 of one species of Stenocereus (cf. S. crassicaudatus) and one of the other - all looked like Sceloporus. First two were on large stones, the other on a step. All were wary. On the way down I wanted some solitude, so spent a lot of the time before dusk on the platform between cars. Air was cool, snake from locomotive was acrid but not bad, and the noise totally obscured everything but the views - which were spectacular. There were many snow covered ridges, w/ the late afternoon sun glistering gold on them. At one point