near Soda Springs, Idaho.
Lava eruptions west of Sheep Rock at least 140,000 years ago blocked the Bear River from draining into the Snake River system. Instead, the Bear was forced to drain into what was then Lakes Thatcher and Bonneville to the . . .
(Natural Features) Includes complete text, location, directions, 3 photos, GPS coordinates, map.
Lava eruptions west of Sheep Rock at least 140,000 years ago blocked the Bear River from draining into the Snake River system. Instead, the Bear was forced to drain into what was then Lakes Thatcher and Bonneville to the . . .
(Natural Features) Includes complete text, location, directions, 3 photos, GPS coordinates, map.