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Mesa Falls, Ashton

#5 of 95 in Nature in Idaho
Upper Mesa Falls is a waterfall on the Henrys Fork in the Caribou-Targhee National Forest. Upstream from Lower Mesa Falls, it is roughly 16mi away from Ashton, Idaho.
Upper Mesa Falls is roughly 114ft high and 200ft wide.
Mesa Falls Tuff, which is the rock over which Upper Mesa Falls cascades, was formed 1.3 million years ago. A cycle of rhyolitic volcanism from the Henrys Fork caldera deposited a thick layer of rock and ash across the area. This layer compressed and hardened over time.
Between 200,000 and 600,000 years ago, the river eroded a wide canyon which was subsequently partly filled with basalt lava flows. The Henrys Fork of the Snake River then carved the channel through the basalt; which is the inner canyon seen today.
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Mesa Falls Reviews
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TripAdvisor Traveler Rating 5.0
335 reviews
  • This is a 25 mile side loop off of highway 20 on the way to West Yellowstone. A gorgeous drive through forests and a stop at thundering Mesa Falls, where a well constructed walkway allows for views fr...  more »
  • We were tipped off by Heather at 511 Main Fountain in Ashton to take the Route 47 Bypass... and we were glad she did! Both Falls are amazing, and a must see.  more »
  • Mesa Falls is absolutely beautiful. The drive up is gorgeous and it is breathtaking to see the Falls. Fair warning, high concentration of mosquitos in the area. Fun stop as you explore the natural wonders in the region.
  • Absolutely beautiful place! Short hike on a well groomed trail and excellent walkways and viewing areas (a little icy during winter)

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