Great Falls in Cascade County, Montana — The American West (Mountains)
Great Falls of the Missouri River
Minni-Sose-Tanka-Kijn-Ya
Photographed by Barry Swackhamer, August 16, 2022
1. Great Falls of the Missouri River Marker
Capt. Meriwether Lewis
June 13 1805
Power development
The Montana Power Co.
--- 1915 ---
Height of Falls 77.8 Ft.
Height of Dam 65 Ft.
Length of Spillway 1000 Ft.
Maximum Head 155 Ft.
Maximum Capacity 80000 HP.
Topics and series. This historical marker is listed in these topic lists: Exploration • Natural Features • Waterways & Vessels. In addition, it is included in the Lewis & Clark Expedition series list. A significant historical date for this entry is June 13, 1805.
Location. 47° 34.094′ N, 111° 7.054′ W. Marker is in Great Falls, Montana, in Cascade County. It is on Ryan Dam Road, on the left when traveling west. Touch for map. Marker is at or near this postal address: 160 Ryan Dam Road, Great Falls MT 59404, United States of America. Touch for directions.
Regionally, this marker is in andspecifically entral Montana in Russell Country. It is also in the American Mountain West and in the Lewis & Clark Corridor. Globally, it is in North America, the Rocky Mountains, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once Ruperts Land and also the Louisiana Purchase.
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies: Lewis and Clark Passed Here (within shouting distance of this marker); It's All Geometry (about 700 feet away, measured in a direct line); From Water Comes Power (about 700 feet away); The Falls Undergo a Change (about 700 feet away); Captain Lewis Arrives at the Great Falls (about 700 feet away); Formation of the Gorge and Falls
this page online
Photographed by Barry Swackhamer, August 16, 2022
2. Great Falls of the Missouri River Marker
Photographed by Barry Swackhamer, August 16, 2022
3. Great Falls of the Missouri River Marker
Photographed by Jim Carson
4. As It Once Was: Lewis and Clark at the Great Falls
Credits. This page was last revised on March 5, 2026. It was originally submitted on May 3, 2024, by Barry Swackhamer of Brentwood, California. This page has been viewed 208 times since then and 16 times this year. Photos: 1, 2, 3, 4. submitted on May 3, 2024, by Barry Swackhamer of Brentwood, California.
