Before you go
We found no public trail, viewpoint or parking area for a waterfall at Castner Falls; it appears on maps as a rural place name in Cascade County. Do not cross fenced land without permission.
Photo Credits (4)
About Castner Falls
Castner Falls is a named place in Cascade County, Montana, east of the Missouri River between the towns of Cascade and Ulm. A local history places it in Castner Coulee, a roughly seven-mile coulee with a small creek, between Deep Creek and the Missouri River, and says it was likely named for pioneer cattleman John Castner. It is not one of the Great Falls of the Missouri, and we found no documented trail or public viewpoint for a waterfall here.
The Setting
Castner Falls sits at 3,543 feet within Local Other or Unknown, in the mountains of Montana.
Trail & Hike Details
Accessibility
Accessibility information is not available. The area may not be suitable for visitors with mobility challenges.
Frequently Asked Questions
🐶 Are Dogs Allowed at Castner Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🆖 No fees required
🏊 Is There Swimming at Castner Falls?
❌ Swimming is not allowed
When to Visit
Spring and early summer are typically the best times to visit, as water flow is higher due to snowmelt. Fall offers cooler weather and scenic foliage.
Seasonal Access
The best time to visit is Spring, Summer, and Fall. Winter access may be limited.
Safety Information
Exercise caution near the river and falls, as the currents can be strong and the terrain rugged. Check weather conditions and river levels before visiting.
7-Day Flow Outlook
Based on the USGS gauge Smith River near Eden MT (15 km away).
Today
Barely Flowing
128 cfs
5/10Tomorrow
Barely Flowing
119 cfs
5/10Thu
Barely Flowing
114 cfs
5/10Fri
Barely Flowing
116 cfs
5/10Sat
Barely Flowing
121 cfs
5/10Sun
Barely Flowing
123 cfs
5/10Mon
Low
128 cfs
4/10Best window: Today — barely flowing flow, mostly sunny (trip score 5/10).
Best time of year: this gauge typically runs highest from mid April to mid July, peaking in May.
How we calculate this
This is a transparent outlook, not a precise forecast. We take the waterfall's current flow strength (how it ranks against its historical normal for today, from the nearest USGS stream gauge), carry that ranking forward along the gauge's seasonal curve, and nudge it for forecast rain. Confidence is highest for the next day or two and falls further out. Always check official conditions and your own judgment before visiting — high flows can be dangerous.
Know when to go.
Get a free email alert when waterfalls near Ulm hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.
Is Castner Falls Frozen?
Updated about 7 hours agoNot frozen highs above freezing lately
Castner Falls is not frozen right now; highs have been above freezing. Yesterday ran 58°F to 45°F.
- Days below freezing
- 0 of the last 14
- Current cold streak
- 0 days
- Freezing days ahead
- 0 of the next 7
- Flow
- 128 ft³/s
Winter safety. Frozen falls are the one waterfall trip with a documented injury pattern: falling ice, and ice-glazed rock and trail. Wear microspikes, keep well back from the base and from overhangs, and never walk out on ice over moving water.
Estimate from Open-Meteo daily temperatures at the falls, the LiDAR-measured facing direction, and the nearest stream gauge. It is a likelihood, not a report from the trail. See every frozen waterfall in Montana.
Weather Forecast
Location & Access
Getting There
Castner Falls is mapped in Cascade County east of the Missouri River, between Cascade and Ulm; Castner Falls Road serves the area. No public access point for a waterfall is documented.
Get Directions on Google MapsElevation
3,543 feet above sea level
Coordinates
47.304765° N, -111.496944° W
Land Management
Managed by UNKL
Visitor Tips & Gear
Wear sturdy footwear and bring water, as the terrain may be uneven. Check local conditions before visiting, as access may vary depending on weather or river levels.
Where to Stay
Sleep Inn & Suites Great Falls Airport
Wingate by Wyndham Great Falls
The Great Falls Inn By Riversage
The Gibson Hotel Great Falls, an Ascend Collection Hotel
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.
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Nearby Attractions
The Great Falls of the Missouri, including Rainbow Falls and Black Eagle Falls, and the Lewis and Clark Interpretive Center are in Great Falls to the northeast.
Wildlife
The area may feature local wildlife such as deer, birds, and fish. Be cautious of potential encounters with wildlife.
Cities near Castner Falls
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