Although the main road on the mountain (Wyoming Highway 251) stays open year-round, the road to Muddy Mountain is usually closed during the winter, due to conditions, and the fact that a majority of Muddy Mountain is uninhabited.
highway | Wyoming | state highway | Cheyenne, Wyoming | Princes Highway | Alaska Highway | Trans-Canada Highway | Jefferson Highway | University of Wyoming | New Zealand State Highway 1 | Highway to Heaven | Mexican Federal Highway | Federal Highway Administration | California Highway Patrol | New Zealand State Highway 6 | Minnesota State Highway 55 | Lincoln Highway | Laramie, Wyoming | Casper, Wyoming | Stuart Highway | Hume Highway | Federal Highway | Controlled-access highway | Wyoming Valley | Pacific Highway | North Carolina Highway 20 | National Highway Traffic Safety Administration | Interstate Highway System | Highway Patrol | Minnesota State Highway 32 |