For those of you thinking of camping out for the Trail Rail Run, there are options. There are numerous private and Forest Service campgrounds around St. Regis within a short hop of the Run Central.
Nugget Campground and RV Park in St. Regis, 406-649-2122, http://www.nuggetrvpark.com/
Campground St. Regis, 406-649-2470, http://www.campgroundstregis.com/
Forest Service rental cabins/bunkhouse/cookhouse at Savenac Nursery, 406-822-4233, http://www.fs.usda.gov/activity/lolo/recreation/camping-cabins
Cabin City Campground at Henderson exit, http://visitmt.com/listing/categories_NET/MoreInfo.aspx?IDRRecordID=2174
Sloway Campground between Sloway & Dry Creek exits, http://visitmt.com/listing/categories_NET/MoreInfo.aspx?IDRRecordID=17757&siteid=3
Trout Creek Campground 7 miles out of Superior, http://visitmt.com/listing/categories_NET/MoreInfo.aspx?IDRRecordID=2398&siteid=1
Quartz Flat Campground on both sides of I-90 east of Superior, http://www.travelmt.com/mt_sites_2397_Quartz+Flat+Campground.html
Cascade Campground halfway down MT 135 between St. Regis and MT 200, 406-826-3821, http://visitmt.com/listing/categories_NET/MoreInfo.aspx?IDRRecordID=2273&siteid=4
Numerous smaller dispersed sites with minimal improvements in all directions on National Forest property.