• Yellowstone National Park (1993)
• Arches National Park (1991)
• For the Good of All (1984)
• The Grand Canyon (1984)
• The Grand Canyon Chronicles (1981)
• Canyon de Chelly & Hubbell Trading Post (1979)
• Washington State's San Juan Islands, 2nd Ed. (1989)
• Niagara Falls: The Changing Nature of a New World Symbol (1985)
• Bryce, Zion and Grand Canyon's North Rim (1991)
• Grand Canyon and Petrified Forest (1983)
• Mount Rainier (1980)
• The Civil War (1984)
• Shenandoah: The Gift (1982)
• Mt. Rushmore and the Black Hills of South Dakota (1985)
• Glacier National Park, Montana (1986)
• National Monuments of Southern Arizona (1986)
• Big Bend National Park, Texas (1986)
• Reader's Digest: Nature's Symphony (1990)
• Yogi's Great Escape! (1984)
• Zion National Park: Towers of Stone (1991)
• For Earth's Sake: The Life and Times of David Brower (1989)
• The Adirondacks (1987)
• Yellowstone Under Fire (1989)
• Carlsbad Caverns and Guadalupe Mountains National Parks (1989)
• Mammoth Cave National Park, Kentucky (1988)

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