Upper Mist Cascade is a waterfall on Fall River in Teton County, Wyoming, in the Middle Rockies region, with a total height of about 10 feet. It lies about 32.3 miles east of Ashton and roughly 77.2 miles northeast of Idaho Falls as the crow flies.
At 10 feet it is on the modest side for Wyoming, where the typical waterfall with a recorded height stands around 60 feet; it ranks 222nd of 230. The water comes down as a block waterfall, wider than it is tall, spilling over a broad ledge.
The Middle Rockies are high, glaciated mountain ranges with alpine peaks, subalpine fir and spruce forest, lodgepole pine and grassy intermontane valleys. Snowmelt streams cascade down glacial valleys and canyon walls. Fall River carries 11 recorded waterfalls; the biggest of them reaches 140 feet.
There are 121 recorded waterfalls in Teton County. Mist Cascade, a 40-foot cascade waterfall, is under a mile away. Forgotten Falls, a 20-foot block waterfall, is under a mile away. Savage Creek Cascades, a 280-foot tiered waterfall, is about 2 miles away.
Upper Mist Cascade is located at 44.1459° N, 110.8049° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The creek name is confirmed against the federal Geographic Names Information System. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.