Toad Shade Trillium, Walnut Bottom Road, Great Smoky Mountains National Park, Tennessee, April 24, 1968

Moose Wood, Trillium Gap Trail, Great Smoky Mountains National Park, Tennessee, May 9, 1968

Water Patterns, Davidson Creek, Pisgah National Forest, North Carolina, May 18, 1968

Snow on Saplings with Black Tree Trunks, Great Smoky Mountains National Park, Tennessee, March 11, 1969

View Down Little Pigeon Valley, Great Smoky Mountains National Park, Tennessee, March 11, 1969

Marsh Grasses, Malheur National Wildlife Refuge, Oregon, July 11, 1975

Dead Trees, Clingman's Dome, Great Smoky Mountains National Park, Tennessee, May 11, 1968

Laurel on Spence Field, Great Smoky Mountains National Park, Tennessee, June 28, 1968

Trees on Ramsey Prong, Great Smoky Mountains National Park, Tennessee, July 1, 1968

Ice on Trees, Great Smoky Mountains National Park, Tennessee, March 12, 1969

Rock Crevice at Low Tide, Cape Arago, Oregon, July 13, 1975

Drift Stump and Dead Trees, Cape Meares, Oregon, July 16, 1975

Hemlocks and Rhododendrons, Trillium Gap Trail, Great Smoky Mountains National Park, Tennessee, May 9, 1968

Azalea and Landscape, Andrew's Bald, Great Smoky Mountains National Park, Tennessee, June 27, 1968

Tree and Little Pigeon Valley, Great Smoky Mountains National Park, Tennessee, March 11, 1969

Grassland, Rockville, Oregon, July 10, 1975

Moss-covered Spruces, Coastal Forest, Florence, Oregon, July 14, 1975

Mist and Firs, Rat Trap Pass, North Cascades, Washington, July 29, 1975

Tidal Boulders, Devil's Punch Bowl, Oregon, July 15, 1975

Lichen in Cliff, Oneonta Gorge, Mount Hood National Forest, Oregon, July 19, 1975