This is an easy drive-to summit on Forest Service roads. See link below for map of route. It will take you approximately one hour from downtown Plains, Montana to get to the summit. Four wheel drive not needed. The only downside are the large communication towers that will interfere with your transmitting. I found that if you drive to the far side of the loop road and get the towers out of sight, you can get a good signal to and from Missoula and up to Whitefish. Let me know when you plan to activate this easy one and I'll chase you as I live in Plains. I used a handheld Yaesu FT2D with a 42 inch foldable measuring tape type of antenna. 146.52 voice FM. I was heard at 55 to 57 up to 70 miles away. Nothing beats line of sight.
Link to map of summit route