The Gates of the Mountains Wilderness is located in the U.S. state of Montana. Created by an act of Congress in 1964, the wilderness is managed by Helena National Forest. A day use campground near the
Outcrops of massive Madison Limestone flank the Missouri River near the Gates of the Mountains canyon formation
"Opening" of the Gates of the Mountains coming upstream as they would have been viewed by Lewis and Clark
Madison Limestone walls of the Gates of the Mountains
Mann Gulch, in the Gates of the Mountains Wilderness.
Holter Dam
Videos
Holter Dam is a hydroelectric straight gravity dam on the Missouri River about 45 miles northeast of Helena, Montana, in the United States. The dam, which was built between 1908 and 1918, is 1,364 fee
Holter Dam in 1918
Holter Lake circa the early 2000s, with the Holter Lake Campground in the foreground.
Interior of the Holter Dam powerhouse in 1994. Generating turbine No. 1 is in the foreground.