Union Falls

Imagery: USGS / CopernicusOpen in MapAbout this site
Union Falls is a backcountry hiking destination in Yellowstone National Park featuring Yellowstone's second tallest waterfall at 260 feet, formed at the intersection of Mountain Ash Creek's converging forks. The hike from Cascade Creek Trailhead is approximately 16 miles (moderate to difficult difficulty). Multiple designated backcountry campsites (9U1, 9U2, 9U3, 9U4, 9U5, 9F1, 9F2) are available with advance reservation and permit; the first campsite is about 6 miles from the trailhead. Campsites feature campfire rings and bear food storage. A nearby thermal pool (Ouzel Pool/Scout Pool) offers swimming opportunities. The trail is accessed via Grassy Lake Road from Flagg Ranch near Yellowstone's South Entrance.
Amenities & access
Access
- Hike-in access
Amenities
- Fire Rings
Contact
Location
44.180166, -110.886734
Elevation · 6,572 ft
Weather
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