Make this a year for adventure by making reservations at a Montana State Park for a cabin or tipi. CABIN RENTAL To rent a one-room cabin at Lewis & Clark Caverns call: 406-287-3541. This peaceful, rustic retreat is a perfect way to extend a day of adventure. Each cabin contains one double bed, one bunk bed, table with chairs, electrical outlets and electrical baseboard heat. Cooking grills are located outside each cabin and flush toilets and shower facilities are a short walk away.