Wallula Gap, Washington State, USA. September 2006. Looking toward the west across the river at the Horse Heavens Hills. Note extensive flood basalt exposed...
Two Sisters Butte at Wallula Gap as seen looking west toward Columbia River in Washington. (January 2006) Photographed by Umptanum. For other photos (not...
to the west from the railroad bridge over the Walla Walla. The Columbia flows from North (photo right) to South (photo left). The Wallula Gap is just...
