Halfmoon Campground

Big Timber, Montana 59011

Halfmoon Campground

Halfmoon Campground Professional Guide

Detailed Trail Description from our Guidebook

"The drive into Halfmoon Campground is rocky and slow, but the scenery is what tourists expect to see in Montana—a spectacular mountain range bursting from a valley floor carpeted with ranchland and speckled with cows grazing between the sagebrush. Known as one of the state’s island ranges, the Crazy Mountains rise stunningly out of nowhere and confirm for those driving west on I-90 that yes, indeed, they have finally made it to the Rocky Mountains.

On the western flank is Grasshopper Glacier, a lingering remnant of the glaciers that, like a sculptor’s chisel, carved these mountains by etching away mud and stone. Created some 50 million years earlier, the glacier appeared when magma rose from deep within the earth’s core to the muddy ocean floor and solidified into igneous rock."

Halfmoon Campground Trip Reports

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Recent rockslides make for some ankle twisting crossings. The bridge at the fork to head to Twin Lakes has washed out, but a log jam about 200 yards up creek makes for a good crossing point. Take bug spray, as the mosquitos will try to carry you away.
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This is a fairly nice campground for a couple nights. The day we arrived we had the place to ourselves. Next day the place filled up. You can day hike to a nice waterfalls or up into the mountains. Bugs are bad, bring spray. Campsites are made more for campers, good tent locations were hard to find.

Halfmoon Campground Photos

Trail Information

Big Timber
Nearby City
12 Sites
Memorial Day- September, weather permitting
Hiking, Camping
Additional Use
Gallatin National Forest. 406-222-1892, www.fs.usda.gov/custergallatin
Local Contacts
Fees per Night
Hand-pump well, vault toilets.

Trail Log