The first picture is looking up river, the American River.
Below is straight across. You can't see the pump house from this spot but it is straight down the mountain.
Looking down river you can see (click on picture it set a clear view) where the diversion tunnel comes out of the east back back into the river.
The massive scare were the western footing of the dam was started. We took a side road over to look down on the massive project. Part of the road we were walking on had slide down the mountain. The rocks that we stepped on were breaking beneath our feet. I can't imagine building anything substantial is such an geologically unstable area.