Alfred A Hart 209 - Donner Lake from Crested Peak - Several versions of this view exist. The stereo versions were cropped to showcase the lake, and hid the rock wall just out of sight on the right side, except for a tiny spot in the upper corner. In the uncropped view, the entire wall is visible, and has several distinct clefts which indicate exactly where Hart's camera was placed for the shot. Photo enlargers didn't exist in the 1860's, so contact prints were made by placing glass negatives over sensitized paper and exposing in sunlight. The prints were then processed and trimmed and mounted on stereo cards. Carleton Watkins also reprinted the scene from the same negatives in his Pacific Railroad series. Photo location 39 18.515'N 120 18.728'W