Snogo clearing highway at Donner Summit, verso Image Read more about Snogo clearing highway at Donner Summit, verso
Snogo clearing highway at Donner Summit Image Read more about Snogo clearing highway at Donner Summit
Southern Pacific rotary snow plow, verso Image Read more about Southern Pacific rotary snow plow, verso
Donner Summit airplane lookout station, verso Image Read more about Donner Summit airplane lookout station, verso
