The highest point on U.S. Highway 12 between Missoula, Mont. and Lewiston, Idaho, Lolo Pass (elev. 5,235') offers multiple recreation opportunities. In the winter, it's a popular snowmobiling and cross country ski destination, with miles of groomed trails. Backcountry skiers also enjoy the surrounding terrain.
In the summer, rock climbers head to the nearby Crystal Theater, while the numerous logging roads in the area give off-roaders lots of room to explore.
Note that a parking pass, available at the Lolo Pass Visitor's Center , must be purchased during the winter months. You can visit the Clearwater National Forest's official Lolo Pass Web page here.