Learn about the geologic forces that continue to change the dramatic scenery of Jackson Hole. Find out why the Teton Range rises abruptly from the valley and how the Teton fault and glacial ice shape the landscape.
Learn about the various glacial periods that swept over the landscape carving the high peaks, carving U-shaped canyons and gouging out depressions to form valley lakes.
Motion on the Teton fault began about 10 million years ago lifting the mountains skyward and hinging the valley down. It is only a matter of time before another earthquake lifts the mountains and drops the valley floor.
Duration:
2 minutes, 16 seconds
Last updated: February 24, 2015
Park footer
Contact Info
Mailing Address:
P.O. Box 170
Moose,
WY
83012
Phone:
307-739-3399
Talk to a Ranger? To speak to a Grand Teton National Park ranger call 307–739–3399 for visitor information Monday-Friday during business hours.