Union Falls waterfall

Union Falls

Wyoming

Yellowstone National Park NP · National Park Service
Photo Credits (3)
1.
Billy Wilson Photography CC BY-NC 2.0 · Flickr
2.
jajacks62 CC BY-ND 2.0 · Flickr

Difficulty

Moderate

Trail Length

2.4 miles

Trail Type

Out And Back

Elevation Gain

350 ft

About Union Falls

Union Falls is a stunning two-tiered waterfall located in Yellowstone National Park, Wyoming. It is named for the way two streams converge into a single cascade, creating a unique and picturesque sight. The waterfall is considered one of the most beautiful in the park and is a popular destination for hikers seeking a more remote experience.

Height: 260 feet

Trail Description

The trail to Union Falls is a challenging but rewarding hike through the remote Bechler region of Yellowstone. Hikers will traverse dense forests, cross streams, and pass through meadows filled with wildflowers. The trail includes several creek crossings, which may require wading depending on water levels. The final approach to the waterfall offers breathtaking views of the cascading water.

What to Expect

Visitors can expect a remote and serene hiking experience with stunning views of Union Falls at the end. The trail is less crowded than other areas of Yellowstone, providing a sense of solitude. However, the hike is long and physically demanding, with multiple water crossings and potential encounters with wildlife.

Accessibility

The trail to Union Falls is not wheelchair accessible and is suitable only for experienced hikers due to its length and difficulty.

Seasonal Closures

The trail may be inaccessible during spring and early summer due to high water levels and snowmelt. Grassy Lake Road, which provides access to the trailhead, may also be closed during winter and early spring.

Safety Information

Hikers should be prepared for creek crossings, changing weather, and potential wildlife encounters. Carry bear spray and know how to use it. Check trail conditions before starting your hike, as water levels can make crossings dangerous.

Location & Access

Getting There

Union Falls is located in the Bechler region of Yellowstone National Park, which is less visited compared to other areas of the park. The trailhead is typically accessed via the Grassy Lake Road, which may require a high-clearance vehicle depending on road conditions.

Get Directions on Google Maps

Parking

Parking is available at the trailhead, but spaces may be limited during peak season. Visitors should plan to arrive early to secure a spot.

Elevation

6791 feet above sea level

Coordinates

44.192708° N, -110.870770° W

Land Management

Yellowstone National Park NP

Managed by NPS

Visitor Tips & Gear

Tips for Your Visit

Start early to allow plenty of time for the hike and to avoid afternoon thunderstorms, which are common in the summer. Wear sturdy, waterproof hiking boots and bring trekking poles for the creek crossings. Be prepared for changing weather conditions and carry bear spray, as this is bear country.

What to Bring

  • Sturdy hiking boots
  • Trekking poles
  • Bear spray
  • Plenty of water
  • Snacks or a packed lunch
  • Waterproof clothing
  • Map or GPS device

Recommended Gear

As an Amazon Associate, we earn from qualifying purchases.

With 2.4 miles and 350 ft of elevation gain, sturdy boots and trekking poles will help on this moderate trail. Sun exposure on the trail makes good sun protection a must in summer.

Nearby Camping

Cave Falls Campground

8.4 miles away · 0 sites

This campgrond is situated on the banks of Fall River in Wyoming along the south border of Yellowstone National Park.  Cave Falls Campground has 23 single site units and a terrific area for fishing. Each campsite has fire rings, grills and picnic tables.  Located throughout the campground are vault toilets, water faucets, bear proof storage boxes, and a dumpster.  The campground is located in grizzly bear habitat that requires special precautions be taken with food storage.

Book on Recreation.gov

Frequently Asked Questions

🐶 Are Dogs Allowed at Union Falls?

❌ Dogs are not allowed

Are There Any Fees or Permits Required?

🤑 Fee: $35.00
Permit required
A backcountry permit is required for overnight stays in the area. Day hikes do not require a permit.

🏊 Is There Swimming at Union Falls?

✅ Swimming is allowed

Best Seasons to Visit

summer fall

The best time to visit Union Falls is during the summer and early fall, typically from July to September, when the trail is accessible, and water levels are lower for creek crossings.

Additional Information

Nearby Attractions

Ouzel Pool, Bechler Falls, and the Bechler Meadows area are nearby attractions worth exploring.

Wildlife

The area is home to a variety of wildlife, including bears, elk, moose, and birds. Visitors should remain vigilant and follow park guidelines for wildlife safety.

Cities near Union Falls

Nearby Waterfalls

36.8 miles away
Wyoming
Moderate
5.5 miles 500 ft
28.6 miles away
Wyoming
Moderate
3.0 miles 500 ft
30.9 miles away
Wyoming
Moderate
2.4 miles 350 ft
4.3 miles away
Wyoming
Moderate
2.4 miles 350 ft
1.6 miles away
Wyoming
Moderate
2.0 miles 300 ft