The Forest Service is currently in the early stages of planning for how it will manage the Custer Gallatin National Forest for the next 20-30 years.The Custer Gallatin stretches across 400 miles – from West Yellowstone, MT to Camp Crook, SD – and encompasses 9 different mountain ranges, including the highest peaks in Montana. The forest offers every kind of skiing imaginable and it’s home to some of the finest ice climbing in the country.