The Race to the Sky is a long-distance sled dog race held annually in Montana. There are several divisions offered at different distances. the longest race was originally a 500-mile (800 km) race but is currently 350 miles (560 km). It is a qualifying race for the Iditarod Trail Sled Dog Race and is sometimes called "The Iditarod of the Lower 48."
The race was first held in 1986 and was a 500 mile competition called the Governor's Cup Sled Dog Race. From the outset, it was a qualifying race for the Iditarod. In 1989, the race organizers incorporated as Montana Sled Dog, LLC, a 501(c)(3) nonprofit. That year, the race was temporarily renamed the Montana Centennial Sled Dog Race, honoring the centennial of Montana statehood. After that, it was called the Race to the Sky and other races with shorter distances were added to the program. The 500 mile format was the longest United States sled dog race outside of Alaska. A 250-mile (400 km) race was added in 1991, raised to 300 miles from 1993 to 1996. In 1997, the 500-mile race became a 350-mile race. The shorter race became 200 miles (320 km) for a time, and then a 100-mile (160 km) race for adult competitors and a 100-mile race for youth competitors were offered.
The race commemorates the World War II sled dog training camp that operated near Helena, Montana, the Camp Rimini War Dog Reception and Training Center. The facility trained as many as 800 sled dogs as war dogs for a potential invasion of Norway, a plan that ultimately did not materialize. Instead, the sled dogs were assigned to search and rescue missions in Greenland, Canada and Alaska. Pack dogs were also trained at the facility and about 125 soldiers were taught mushing skills to become drivers.
The first leg of the 350-mile race begins with an official start at the site of former Camp Rimini, near Rimini, Montana and ends near Exit 138 of Interstate 15 at Elk Park near Butte, Montana. The following day, the mushers and dogs are transported to Lincoln, Montana and the race restarts at that location. The 100-mile race also begins in Lincoln and finishes at Seeley Lake, Montana. The 350-mile race competitors continue past Seeley Lake to a turn-around point at Owl Creek, where they return to Seeley Lake and then to Lincoln to finish.