In 1921, following the rediscovery of Timpanogos Cave, a community raised their voices for the preservation of a fragile and beautiful cave system. Their call was answered on October 14, 1922, when Warren G. Harding created Timpanogos Cave National Monument. Since that day, Timpanogos Cave has become much more than a beautiful cave. The Timpanogos Cave System has become known for its cave formations, color, geology, and unique history. Numerous individuals and groups have worked to share and continue to protect this amazing site. Heart of the Mountain follows people that have used, worked, visited and loved the Timpanogos Cave National Monument from the early people to modern visitors and managers.