Arch Falls
By Armen Suny · Last verified Mar 2026
Photo Credits (5)
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Arch Falls
Arch Falls is a scenic cascade tucked into Montana’s Gallatin National Forest and managed by the U.S. Forest Service. The falls sit within a rugged, forested setting that rewards photographers and day hikers with a peaceful riverside viewpoint. Access is via the U.S. Forest Service’s Grotto Falls Trail (Trail #432), whose short maintained spur leads down to the falls and frames them against mossy rock and mixed-conifer forest. The approach to Arch Falls is an enjoyable moderate outing—2.4 miles round-trip with about 350 feet of elevation gain on an out-and-back route. The USFS inventory notes the Grotto Falls Trail #432 includes a 0.03-mile segment surfaced with imported compacted material and is listed as Class 5; overall the hike is rated moderate. If you’re planning to camp, Chisholm Campground is nearby, about 5.3 km from the trailhead, making Arch Falls a convenient day trip or part of a short overnight itinerary in Gallatin National Forest.
The Setting
Arch Falls sits at 7,343 feet within Gallatin National Forest, in the high mountains of Montana.
Trail & Hike Details
The Approach
The moderate hike follows Grotto Falls (#432), a 2.4-mile out-and-back trail over imported compacted material. Expect 350 feet of elevation gain. The trail is fully developed (Class 5).
USFS Trail
GROTTO FALLS #432
Trail Class
Fully Developed
Surface
USFS Segment
0.03 miTrail Description
The hike to Arch Falls is an out-and-back route totaling 2.4 miles with roughly 350 feet of elevation gain and is rated moderate. The approach uses the USFS Grotto Falls Trail (Trail #432); the USFS trail inventory records a short 0.03-mile segment surfaced with imported compacted material. That trail segment is listed as Class 5 in the USFS data. Expect natural, uneven terrain beyond the maintained spur—roots, rocks, and typical backcountry footing—so sturdy shoes and basic trail skills are recommended. The route and falls are managed by the U.S. Forest Service within Gallatin National Forest, and Chisholm Campground lies about 5.3 km from the trailhead for those looking to stay nearby.
What to Expect
Visitors can expect a serene natural setting with the sound of cascading water and opportunities for photography. The area may also feature rugged terrain and dense vegetation.
Accessibility
The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.
Frequently Asked Questions
🐶 Are Dogs Allowed at Arch Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at Arch Falls?
❌ Swimming is not allowed
When to Visit
Spring and summer are ideal for visiting Arch Falls due to favorable weather and vibrant greenery. Fall offers beautiful foliage, while winter may present icy conditions.
Seasonal Access
The best time to visit is Spring, Summer, and Fall. Access roads and trails may close during winter due to snow. Check with Gallatin National Forest for seasonal road closures.
Safety Information
Visitors should be cautious of slippery rocks, uneven terrain, and potential wildlife encounters. Always stay on marked trails and carry bear spray if hiking in bear country.
Current Water Conditions
34 ft³/s
Current discharge — how much water is flowing
Much lower than usual for this time of year
Based on 75 years of record
2.38 ft
Water depth at gauge
7-Day Discharge Trend
What does this mean for your visit?
Flow is well below normal for this time of year, so the waterfall may be a trickle.
About This Gauge
This gauge is on a nearby waterway and may not reflect exact conditions at the falls.
Weather Forecast
Location & Access
Getting There
Arch Falls is located in Montana, but specific directions to the trailhead or parking area are not well-documented. Visitors are advised to consult local maps or contact nearby ranger stations for guidance.
Get Directions on Google MapsParking
Parking availability is unclear, but visitors should expect limited parking near the trailhead or along nearby roads.
Elevation
7343 feet above sea level
Coordinates
45.427154° N, -110.961055° W
Land Management
Managed by USFS
Visitor Tips & Gear
Wear sturdy hiking shoes and bring plenty of water. Check weather conditions before visiting, as trails may become slippery or inaccessible during rain or snow.
This trail sits at 7,343 ft above sea level
Elevated TrailUV radiation is roughly 29% stronger at this elevation than at sea level, and the dry air accelerates dehydration. Extra sun protection and fluids go a long way.
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Coppertone Sport SPF 50 Sunscreen
UV intensity jumps ~4% per 1,000 ft — at this elevation you can burn in half the time.
Sun Bum SPF 30 Lip Balm (3-Pack)
Lips have almost no natural UV protection and burn fast in thin, dry mountain air.
Liquid I.V. Electrolyte Packets
You lose moisture ~2x faster at elevation — electrolytes help you absorb water efficiently.
ROCKNIGHT Polarized UV400 Sunglasses
High-altitude glare off rock and water is intense — UV400 lenses block 99%+ of UVA/UVB.
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.
Polarized Sunglasses (Knockaround)
Cuts glare off the water so you actually see the falls — and your photos turn out better too.
Columbia Watertight II Rain Jacket
Packs into its own pocket, seam-sealed, and keeps you dry from spray and surprise rain.
Earth Pak Waterproof Dry Bag
Keeps your phone and gear dry when waterfall mist soaks everything else.
Waterproof Phone Pouch (AiRunTech)
Cheap insurance — take photos right next to the falls without killing your phone.
Timberland Euro Sprint Mid Waterproof
Trusted waterproof boot with premium leather and grippy rubber sole — reliable on rocky, wet trails.
TrailBuddy Trekking Poles
Lightweight aluminum, cork grips, and flip-locks that actually hold — a best-seller for good reason.
Where to Stay
Game Day Hub! half Mi to MSU and Bobcat Stadium
Field & Stream Lodge Bozeman
Under Canvas North Yellowstone - Paradise Valley
Fairfield by Marriott Inn & Suites Livingston Yellowstone
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
Some links are affiliate links. We may earn a commission at no extra cost to you.
Nearby Campground
CHISHOLM CAMPGROUND
3.3 miles away · 10 sites
Overview Chisholm Campground is located next to scenic Hyalite Reservoir in the Bozeman Ranger District of the Gallatin National Forest, 18 miles south of Bozeman, Montana. The surrounding area offers many outdoor recreational opportunities, including boating, canoeing, fishing, hiking and climbing.Recreation Hyalite Reservoir offers many recreational activities, including boating, canoeing and fishing opportunities. Anglers fish for Yellowstone cutthroat, Arctic grayling and brook trout. Hyalite
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Nearby Attractions
Nearby attractions may include other hiking trails, scenic viewpoints, and natural landmarks in Montana.
Wildlife
The area may be home to wildlife such as deer, birds, and small mammals. Visitors should be cautious of potential encounters with bears or other large animals.
Cities near Arch Falls
Nearby Waterfalls
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