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Location: Boulder River Canyon
Counties: Sweet Grass
From interstate I-90 take exit 370 into Big Timber Montana. Take a right onto Big Timber Loop Rd. Big Timber Loop Rd turns into E 1st street. Make a left onto McLeod St, also known as Hwy 289. Follow this street heading south over the bridge that crosses I-90. This road takes you approximately 26 miles out to the Natural Bridge Falls with a speed limit of 60 mph. 16 miles in you will pass McLeod Montana. At approximately 25 miles is a rough patch of round known as the slide area. Where the speed reduces and signs are posted.
Constrained by a deeply cut chasm during high water, the Boulder River flows over a 100-foot precipice, creating the spectacular Natural Bridge Falls. At low water, the river used to flow under a natural rock bridge, but in July 1988, the bridge that gave the area its name, collapsed.
Paved pedestrian trail provides great views and interpretive geologic information.
Width: 60 inches.
Primary Surface: Asphalt
Secondary Surface: Asphalt
Average Grade: 7%
Maximum Grade: 10%
Elevation Low Point: 5,200
Elevation High Point: 5,200
Elevation Gain (cumulative): Not Available
Year Designated: 1981
For more information and current conditions, contact the trail manager (listed below). For questions, suggestions, and corrections to information listed on the website, contact American Trails.
Great Day Hike
The Natural Bridge Falls is a great accessible trail. It is ideal for families, seniors, beginner hikers and plus size hikers. The loop is less then a half mile round trip. The views are spectacular. It's an excellent lunch stop on your way into the Gallatin National Forest.
This visit was done in late March. Most of the path was clear of snow except on some densely tree covered areas. Water flow was less then it is in May and June. Temperature ranged in the high 30's.
March 27, 2019
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