Rainbow Falls
Photo Credits (5)
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Rainbow Falls
Rainbow Falls plunges over a sheer ledge of Kootenai Formation sandstone on the Missouri River in Great Falls, Montana, and is one of the five Great Falls of the Missouri that Lewis and Clark famously documented. The curtain of water stands about 47 feet (14 m) high and stretches roughly 1,320 feet (402 m) across, producing broad, photogenic flows that change with the season. You can spot Rainbow Falls just upstream from Crooked Falls and downstream from Colter Falls and Rainbow Dam, giving visitors a dramatic stretch of river and geology to explore.
Height: 47 feet
Trail Description
The access route to Rainbow Falls is an out-and-back hike of about 2.4 miles round trip with roughly 350 feet of elevation gain and is rated moderate. The trail follows the Missouri River and provides multiple viewpoints of the falls; expect some short, moderate-grade sections rather than sustained steep climbs. Suitable for hikers with moderate fitness, the route rewards with close riverfront perspectives of the 47-foot cascade and expansive river channel.
What to Expect
Visitors can expect a picturesque waterfall with a wide, cascading flow. The area around the falls is peaceful and offers opportunities for photography, picnicking, and enjoying the natural beauty of the Missouri River.
Accessibility
The trail to Rainbow Falls is relatively flat and may be accessible for visitors with mobility challenges, though some sections may require assistance.
Seasonal Closures
The park and trail are generally open year-round, but access may be limited during severe weather or maintenance.
Safety Information
Stay on designated trails and viewing platforms to avoid slippery rocks and strong river currents. Be cautious near the water, especially with children and pets.
Location & Access
Getting There
Rainbow Falls is located within Giant Springs State Park, just a short drive from Great Falls, Montana. Visitors can access the falls via paved roads leading to the park and nearby viewing areas.
Get Directions on Google MapsParking
There is parking available at Giant Springs State Park, with designated areas for visitors to access the falls and nearby trails.
Elevation
3205 feet above sea level
Coordinates
47.533189° N, -111.205671° W
Visitor Tips & Gear
Arrive early during peak seasons to secure parking and enjoy the falls with fewer crowds. Bring water and sunscreen, especially during the summer months, as the trail has limited shade.
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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
Find hotels, lodges, and B&Bs near the trailhead
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
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Frequently Asked Questions
🐶 Are Dogs Allowed at Rainbow Falls?
✅ Dogs are allowed
Are There Any Fees or Permits Required?
🤑 Fee: $8.00
🏊 Is There Swimming at Rainbow Falls?
❌ Swimming is not allowed
Best Seasons to Visit
The best time to visit Rainbow Falls is during the spring and early summer when water flow is at its peak due to snowmelt. Fall also offers beautiful foliage, while summer provides warm weather for outdoor activities.
Additional Information
Nearby Attractions
Giant Springs State Park, Lewis and Clark Interpretive Center, Black Eagle Falls, and the River's Edge Trail.
Wildlife
Visitors may spot a variety of birds, including eagles and herons, as well as deer and other small mammals in the area.
