From April 1st until May 15th Hyalite Road will be closed to motorized vehicles while all that snow that has piled up all winter melts.

Gallatin National Forest

"This transition time provides a great opportunity for hikers, bikers, roller-bladers, and other non-motorized recreationists to use this very popular corridor on the Gallatin National Forest. Recreationists should remain aware of their surroundings as they enjoy the canyon, as rocks and debris can fall onto the road in the spring. Crews may also be present cleaning debris from the road"