Canadian wildlife artist Clarence Tillenius (1913-2012) designed and painted the background of the Pronghorn Diorama at the Manitoba Museum. Completed in 1970, the diorama represents a specific site from which Turtle Mountain can be seen in the distance. Also at the museum in the same year he produced a 51-foot open-air diorama depicting an indigenous Red River buffalo hunt. Beginning in the 1950s, Tillenius created 18 dioramas at museums in Canada and the United States, each one representing native species in their habitats. Three of his dioramas (cougar, moose and mountain goat) at the Royal Museum of British Columbia were destroyed in the 1970s. Tillenius was additionally remarkable in that after he lost his right arm as a young man, he taught himself to paint with his left arm.