Curators are constantly looking for new ways to make content from the Yellowstone National Park collections available for research purposes. They have created a landing page to help researchers access the materials that have been digitized from BYU's Yellowstone National Park Collection. These materials include publications and photographs. They can be accessed at the Yellowstone National Park History page here.
William Henry Jackson, C. R. Savage, and George Beard are each well known for their photographs of the American West. See digitized instances of some of their Yellowstone photos at the links below.