Lost Creek State Park, Montana state park in Deer Lodge County, United States.

Lost Creek State Park is a 502-acre recreation area about 6 miles north of Anaconda in Deer Lodge County, Montana. Limestone cliffs and multi-colored rock formations rise 1,200 feet above a narrow canyon floor, and a short walking trail leads to Lost Creek Falls, which drops 50 feet.

The area was added to the Montana State Parks system in 1957 to protect the natural limestone cliffs and waterfalls. This designation preserved the landscape for public use and recreation over the decades since.

Visitors come here to watch golden eagles, mountain goats, and bighorn sheep moving freely through the canyons and cliffs. The wildlife shapes how people experience and value this place as a wild refuge.

The park charges an entrance fee for non-resident vehicles, while Montana residents with current vehicle registration enter free. Camping sites and trails are available throughout the grounds for different activity levels.

The 50-foot Lost Creek Falls is reached by a short walking trail from the canyon floor, where limestone cliffs and multi-colored rock formations rise 1,200 feet. Mountain goats and bighorn sheep are often seen on the slopes above the falls.