Aspens on Talus Slope, End of Ashcroft Road, Colorado, September 19, 1959

Dead Hellebore and Aspens, Snowmass Road, Colorado, September 18, 1959

Cloud Formations, Tesuque, New Mexico, May 1978

Asters and Aspens, Cumbres Pass, Colorado, August 10, 1957

Snowbank Melting, Cinnamon Pass, San Juan Mountains, Colorado, August 14, 1957

Cloud Formations, Tesuque, New Mexico, July 1977

Storefront, Aspen, Colorado, October 3, 1951

Storefront, Aspen, Colorado, October 3, 1951

Rainbow, Tesuque, New Mexico, June 1977

Rainbow, Tesuque, New Mexico, June 1977

Sunset Clouds, Tesuque, New Mexico, July 1977

Beaver House, Talus Slope, Maroon Lake, Colorado, September 18, 1959

Wet Aspens, Ashcroft Road, Colorado, September 17, 1959

Grape Hyacinths in Foundation Stones, Epidaurus, Greece, March 17, 1971

Honeycomb Lava, Nakalele Point, Maui, March 3, 1979

Marble (Gypsum) Stairs, Hagia Triada, Crete, March 24, 1971

Main Staircase, Hagia Triada, Crete, March 24, 1971

Propylaea from Below, Lindos, Rhodes, Greece, April 8, 1971

Nut Tree Grove, Hana Road, Maui, March 2, 1979

Golden Moss, Hvita River, Below Gullfoss, Iceland, June 18, 1972