Iron Will is a movie about a famous sled-dog race. It's a true story about a young man who tries to save his family's farm by winning the cash prize in a 500-mile sled-dog race from Winnipeg, Manitoba in Canada to St. Paul, Minnesota. The race actually took place in 1917.
Many of the movie's dog-sled race scenes were filmed in southwestern Montana. The Madison Valley, south of Ennis, provided a "wilderness look." Some of the dramatic and eerie shots were filmed around Quake Lake, near the west entrance to Yellowstone National Park.
During the filming, the crews drove on roads going up to 8,000-foot elevations on granite peaks. Snowcats were used to get into some places with cliffs and crevices, and then the snow plows would go in. An army of production assistants on snowshoes were used several times to pack down the snow on the trails