Working as a seasonal interpretive ranger at Yellowstone, I get asked a lot of the same questions over and over. One of the most frequent inquiries (besides “What is there to do in Yellowstone?”) concerns Grand Teton National Park, just to the south.
And so, if they seem interested, I spend some time trying to explain a bit about the geology. You see, I say, there is this mountain range that was thrust upward over at least the past 13 million years along a major fault…and a river that flows south from Yellowstone and west from the continental divide and ultimately into the Pacific Ocean…and U-shaped valleys as evidence of recent glaciers...
You really just have to see it.
|Snake River and Teton Range at Jackson, Wyoming|
|Teton Range from Jackson Hole, Wyoming|
|Snake River flowing south into Grand Teton National Park|
|Teton Range from Snake River Overlook|
|Moonset over Teton Range|