Zoo Timeline – CMZoo https://www.cmzoo.org/about/zoo-timeline/
Zoo Chronology; past to present. 1916 Spencer Penrose receives a bear as a gift, sparking his passion for collecting animals. 1926 Penrose begins relocating animals from his ranch and the Broadmoor Hotel to the present site of Cheyenne Mountain Zoo. 1937 Will Rogers Shrine of the Sun is dedicated. A miniature railroad, The Zoo Special, . . .
constructed. 1950 The Cadillac-designed Mountaineer cog train replaces original 1938 model