Great Falls in Cascade County, Montana — The American West (Mountains)
Where Does the Water Come From?
In the springs area, the Madison Formation is about 400 feet below the surface. Pressure caused by the overlying rock layers forces the water from the Madison to escape upward, through the cracks in the overlying sandstone. These cracks are visible in the photo at right.
It takes less than 50 years for water to flow from the Little Belt Mountains to the Giant Springs area. The water emerges from the ground at a consistent 54 degrees, all year long.
Water escapes through the cracks, forming Giant Springs, photo courtesy of Christopher Dantic
Erected by Montana State Parks.
Location. 47° 32.069′ N, 111° 13.786′ W. Marker is in Great Falls, Montana, in Cascade County. Marker can be reached from Giant Springs Road 1.3 miles north of River Drive North. Click for map. Marker is located in Giant Springs State Park; the above directions are to the main driveway to the park. Marker is at or near this postal
Other nearby markers. At least 3 other markers are within 6 miles of this marker, measured as the crow flies. The Smallest River Runs Through It (a few steps from this marker); A "great" Set of Falls (approx. 0.4 miles away); Formation of the Gorge and Falls (approx. 5.6 miles away).
More about this marker. The marker is an interpretive sign that is part of the Lewis and Clark National Historic Trail.
Also see . . .
1. Giant Springs State Park. From the official Montana State Parks website. (Submitted on April 29, 2015.)
2. Giant Springs - Wikipedia entry. (Submitted on April 29, 2015.)
Categories. • Natural Features •
Credits. This page originally submitted on , by Duane Hall of Abilene, Texas. This page has been viewed 162 times since then and 59 times this year. Photos: 1, 2, 3. submitted on , by Duane Hall of Abilene, Texas. This page was last revised on June 16, 2016.