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Crazy Mountains

Crazy Mountains

Crazy Mountains

Page Type: Area/Range

Location: Montana, United States, North America

Lat/Lon: 46.01831°N / 110.2768°W

Object Title: Crazy Mountains

Activities: Hiking, Mountaineering, Trad Climbing, Ice Climbing, Aid Climbing, Scrambling, Skiing

Season: Spring, Summer, Fall


Page By: b., Tie-Dye Mike

Created/Edited: May 8, 2006 / Oct 15, 2008

Object ID: 192817

Hits: 29579 

Page Score: 84.27%  - 18 Votes 

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This island of steep ridges and plunging streams is a beacon to those traveling to the Yellowstone region from the east. The entire range seems to thrust from the plains as one large mass. Many of the high peaks do not stand out from any perspective. There are 15 peaks over 10,000 feet in this isolated cluster of rock. The Shoshone and Crow nations both reserved important status for the region. A plethora of game can still be found along the flanks of this range, a likely source of its historic popularity. There is no consensus on the source of the name Crazy Mountains, and theories range from native place names (“Mad Mountains”), abandoned women and the anachronistic geology. The ‘newer’ igneous intrusions that make up the Crazy Mountains are not consistent with the up-thrust sedimentary rocks along the Rocky Mountain front, nor with the Absaroka volcanics around Yellowstone Park.

Crazy Mountains Story
The Crazies Story

Getting There

To approach the east side of the mountains, take I-90 east from Livingston to Big Timber, and turn north onto Highway 191. Then left on Worlsly Loop Road, till you reach Half-Moon Campground and the trail head to Trail #119. 
Big Timber Creek Trailhead Sign
Half Moon Trailhead

To approach the western front, head north through Livingston on Park Street (Highway 89)toward White Sulpher Springs.

Red Tape

There is a great deal of private land surrounding the Crazy Mountains. Please take the time to look thoroughly at the maps to determine if your intended route crosses private parcels. Trailheads offer the safest route to public lands, be very careful about hiking from roads that do not have posted USFS signs. You could end up tresspassing and being prosecuted in the court of the open range.

IMPORTANT: Granite, Blue, and Twin Lakes all have a 1/4 mile "NO FIRES" perimeter around each lake. Also watch for the fire danger postings, in August and September, the forest service tends to close fires to only stoves.

External Links

Gallatin National Forest


There are established Forest Service campgrounds at the Sheild's River and Big Timber trailheads (Half-Moon Campground). These are the only two campgrounds in the range. Once into the National Forest, all backcountry camping restrictions apply:

The Wildlife

Wildlife in the Crazies includes Black bears, (no Grizzly, except once every few years) Mountain Goats, Deer, Marmots, and several varieties of fish including Rainbow trout and Grayling.

Hand Picked Fish

Mountain Goat

Mountain Goats from Torrey

Mountain Goats by Torrey



Crazy PeakPt. 10,437 (left) from NEBig Timber CanyonCrazy SunsetPt. 10,667 above Oasis LakeAvalanceGranite Peak, & Lower Twin Lake
Crazy PeakUpper Twin LakeDruckmiller LakePt. 10,667 above Oasis LakesTowards the Heart of the CraziesCrazy Peak and Big Timber PK. (Left)Big Timber Creek Falls
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