Impasse Falls is a waterfall on East Rosebud Creek in Carbon County, Montana, in the Middle Rockies region, with a total height of about 190 feet. It lies about 24.6 miles west of Red Lodge and roughly 75.7 miles southwest of Billings as the crow flies.
At 190 feet it is on the modest side for Montana, where the typical waterfall with a recorded height stands around 250 feet; it ranks 73rd of 123. The water comes down as a slide, where the water glides down a smooth, inclined rock surface.
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. East Rosebud Creek carries 3 recorded waterfalls, and Impasse Falls is the tallest of them.
There are 7 recorded waterfalls in Carbon County. Twin Outlets Lake Falls, a plunge waterfall, is under a mile away. Charlie Falls, is under a mile away. Martin Lake Falls, a 1,054-foot tiered waterfall, is about 1.6 miles away.
Impasse Falls is located at 45.1177° N, 109.7417° 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.