the Great Falls Tribune has an interesting gallery of photos of the Sweetgrass Hills area:
http://www.greatfallstribune.com/pictur ... 101287696/
Are there any hiking trails there? You can see these hills from the Amtrak Empire Builder and I assume from U.S. 2 also. I was in Sweetgrass and Coutts on the bus years ago but unfortunately I didn't pay much attention to these hills at the time.
Thanks,
Lyman