Grand Canyon

by Merril D. Beal and Mary L Van Camp

Published 31 December 1989

Denali

by Don S Follows, Mary L Van Camp, and Cheri C Madison

Published 1 February 1997

Yosemite

by William R. Jones and Mary L Van Camp

Published 1 March 1980


Petrified Forest

by Sidney R Ash and Mary L Van Camp

Published 31 December 1986


Mount Rushmore

by Lincoln Borglum and Mary L Van Camp

Published 31 December 1980


Mount St. Helens

by Thom Corcoran and Mary L Van Camp

Published 1 January 1985

Glacier

by Kathleen E Ahlenslager and Mary L Van Camp

Published 1 January 1998

Oregon Trail

by Dan Murphy, Gary Ladd, and Mary L Van Camp

Published 31 December 1992

Big Bend

by Carol E Sperling and Mary L Van Camp

Published 1 January 1995



Great Basin

by Michael L Nicklas and Mary L Van Camp

Published 31 December 1996

Santa Fe Trail

by Dan Murphy, Bruce Hucko, and Mary L Van Camp

Published 31 December 1994

Mammoth Cave

by Joy Medley Lyons and Mary L Van Camp

Published 31 December 1991

Arches

by David William Johnson and Mary L Van Camp

Published 31 December 1985