NNev - P. F. Ra, Knott Creek Res.

From the back. Pine Forest Range, Nevada, USA. Note that the dam is concrete on this side, altho the downstream face is fronted with rock.

Pine Forest Range, Nevada, USA. I would guess this dates from the 1930s, probably as a CCC (Civilian Conservation Corps) project. Again, the shrub with the little yellow blooms is rabbitbrush, a very common part of the local vegetation and an opportunistic colonizer.