Montana Mountain road is a 36-43 mile loop depending on how many side roads you explore. The roads ascend to a maximum of 5410 feet elevation and cross many streams and creeks some of which may be full during winter flood events. Any high clearance vehicle can make the trip but be warned you many get some pin striping on fenders and doors due to close brush. There are many steep and narrow sections so be prepared to back up if you meet other vehicles on the road. Allow 4-5 hours minimum.