dances with wolves
might be a bit soft tho
The Horse Whisperer - this is a few songs from the movie, all very amazing pieces of music!
Seabiscuit - in at about 1:57 is a nice 10-12 second piece
Day After Tomorrow - listen in about 2:35
i dont know if your familiar with Hans Zimmer, but he does so many good movie soundtracks
this is one i think fits your needs a lot -
King Arthur
its a very dramatic piece of music.
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