Title: Revising boundaries of Yellowstone, Grand Canyon, Mount Rainier, Rocky Mountain, and Sequoia National Parks and the establishment of Shenandoah, Great Smoky Mountain, and Mammoth Cave National Parks
Subjects: National parks and reserves
Places: Grand Canyon National Park (Ariz.), Great Smoky Mountains National Park (N.C. and Tenn.), Mammoth Cave National Park (Ky.)., Mount Rainier National Park (Wash.), Rocky Mountain National Park (Colo.), Sequoia National Park (Calif.), Shenandoah National Park (Va.), United States, Yellowstone National Park