Tendoy Falls is a 33-foot waterfall on Ferris Fork Bechler River in Teton County, Wyoming, in the Middle Rockies region. It lies about 28.4 miles southeast of West Yellowstone and roughly 80.6 miles northeast of Idaho Falls as the crow flies.
At 33 feet it is on the modest side for Wyoming, where the typical waterfall with a recorded height stands around 60 feet; it ranks 154th of 230. By form it is a fan, spreading out horizontally as it falls and staying in contact with the rock.
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. Ferris Fork Bechler River carries 6 recorded waterfalls; the biggest of them reaches 68 feet.
Teton County holds 121 recorded waterfalls, and several are close by. Gwinna Falls, a 15-foot fan waterfall, is under a mile away. Sluiceway Falls, a 10-foot plunge waterfall, is under a mile away. Groom Falls, a 20-foot cascade waterfall, is under a mile away.
Tendoy Falls is located at 44.2843° N, 110.8787° 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 position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.