September: Grand Teton National Park
Read MoreJ. Pierce Cunningham settled here in Jackson Hole in the 1880s despite the hardships of winter. He iniitially opposed the expansion of Grand Teton National Park but later became and advocate. He teamed up with neighbor Josiah "Si" Ferrin to write a petition signed by 97 valley ranchers who agreed to sell their land to form a "national recreation area." John D. Rockefeller, Jr.'s Snake River Land Company bought Cunningham's land and other ranches. Rockefeller later donated over 33,000 acres to expand the national park.