He specializes in fine-art nature and wildlife photography of the American West. Roberts' nature photos have been published in regional and national magazines including National Geographic Traveler, U.S. News & World Report, New Mexico Magazine, Popular Science, and Albuquerque Monthly; and in books and calendars by National Geographic Books, Falcon Press, Rio Nueva Press, Sierra Press, Landmark, Sierra Club and others. He also sells his photo online and at art shows across the Western U.S. In 2011, one of Roberts' wildlife photos was recognized as one of the 250 best images of the year from the North American Nature Photographers Association.