From Lewistown, MT, take US Highway 87 west to the Glengarry turnoff.  Exit south onto Glengarry Road.  At the T at Glengarry -road signs are here - turn right onto McMillan Road.  Continue to the fork just over the hill.  Turn left onto Beaver Creek Road.  Stay on Beaver Creek Road for 12.5 miles.  A mile before arriving at the Olsen Ranch, you will come to a T.  Take a left.

At the main forks, there are yellow and black Montana Bunkhouse signs that point the way.  A sign is also at the entrance to the ranch headquarters.