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Hidden Lakes Trailhead

Trailhead on Hidden Lakes Trail in Gallatin NF, Rocky Mountains near Big Sky, MT

From the trailhead, Trail 66 leads to the aptly named "Hidden Lakes" that hide in a small treed basin. The hike is about 2.5 miles to the lakes with a moderate incline. ATVs and motorcycles are allowed on the trail Jun 16 – Oct 14. Prepare for a rocky road getting to this trailhead: after turning off the highway and going up the road along Portal Creek, the road progressively worsens.

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South Central Rockies Forests

Gneissic-Schistose Forested Mountains