You guys are my last hope? This is raaandom

I'm trying so hard to think of a movie I once once saw. I've tried posting this topic to two different movie/cinema forums but they just seem so dead. Then I thought...maybe my seibertron friends can help??
It was out maybe 15 years ago? One of the main topics of the movie involved visiting, "The Valley of the Blackstone or the OXbow?" I believe it takes place in Montana? The main character of the movie (Bronson type) ends up falling in love with an Indian woman....Not Stalking Moon or Dances with Wolves and not The Missing but one like them? If I remember correctly he ends up venturing into an uncharted area while being hunted along the way? Any help on this topic would much appreciated. Thanks
It was out maybe 15 years ago? One of the main topics of the movie involved visiting, "The Valley of the Blackstone or the OXbow?" I believe it takes place in Montana? The main character of the movie (Bronson type) ends up falling in love with an Indian woman....Not Stalking Moon or Dances with Wolves and not The Missing but one like them? If I remember correctly he ends up venturing into an uncharted area while being hunted along the way? Any help on this topic would much appreciated. Thanks