WY! Stopped at Twin Falls, ID at Target to grab a few things. We
missed the exit due to construction ad had to backtrack on some local
roads to get there, and we went past this! The land all around is flat
- you wouldn't know that a 400' canyon was there until you came right
up to it! There was an historical marker telling about the suspension
bridge that was built in 1919 to help settlers get across the snake
river canyon. We have been near the Oregon Trail for a lot of our
drive.
More interesting is the geological history about Lake Bonneville that
flooded out around 14,500 years ago that helped cut out the snake
river and went on to the Columbia River (essentially our whole drive).
This wasn't a glacial lake like Lake Missoula, but it flooded around
the same time. It just overflowed the banks and cut away at the
alluvial material holding up the lake. It was huge and the Great Salt
Lake is the remnant of the larger old Lake Bonneville. Pretty neat!
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