Bighorn Sheep, Rocky Mountain National Park

United States · 1980 · 15c

This stamp features a majestic Bighorn Sheep (Ovis canadensis) set against the backdrop of the Rocky Mountains. The design is part of the American Wilderness series, which celebrated the nation's natural landscapes and wildlife. The detailed photogravure printing captures the rugged beauty of both the animal and its habitat.

Issued in 1980, this stamp was part of a broader movement in the late 20th century to raise awareness for environmental conservation and the preservation of America's national parks and wilderness areas.