Union Falls Trail
Union Falls Trail Map

Union Falls Trail

Yellowstone National Park
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Union Falls Trail

Union Falls Trail

Distance: 17.4mi
Elevation: 846ft
Time: 5.5-8h

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The Union Falls Trail is a fantastic hike in the Wyoming wilderness. This trail is long but relatively flat and can be hiked in one, big day. Union Falls itself is an incredible 280ft-tall waterfall. These falls are the second tallest waterfall in Yellowstone National Park.

Union Falls Trail Map

Getting there

This hike begins at the Fish Lake Trailhead in the Winegar Hole Wilderness Area.

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About

Backcountry Campground

Falls River Cutoff, Mountain Ash Creek, Union Falls, 9C4S

When to do

May to October

Pets allowed

No

Family friendly

No

Route Signage

Average

Crowd Levels

Low

Route Type

Out and back


Union Falls Trail
Elevation Graph


Union Falls Trail Description

The Union Falls Trail is a gorgeous hike on the southern border of Yellowstone National Park. This is a long hike; if you plan to complete this whole route in one day, start early in the morning and bring a headlamp in case you wind up finishing in the dark. With over 17.0mi of trail to explore and a spectacular waterfall at the end, the Union Falls Trail is a great way to spend quality time in the Wyoming wilderness with loved ones.

Beginning at the Fish Lake Trailhead, follow the path north and cross over the Fall River. At the Fall River Cutoff Campground, take the trail on your right, then follow it as it runs parallel to Mountain Ash Creek to Union Falls.

Enjoy your time at Union Falls. At 280ft tall, these waterfalls are the second largest falls in Yellowstone National Park.

When you are ready to head home, simply retrace your steps back to the Fish Lake Trailhead, where you began.

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