Environmental Protection

Ferdinand Vandiveer Hayden and the Founding of the Yellowstone National Park

God's Country: The Trail to Happiness

Our Common Land (and Other Short Essays)

The Land of Little Rain

Moths of the Limberlost: A Book About Limberlost Cabin

HENRY DAVID THOREAU – Ultimate Collection: 6 Books, 26 Essays & 60+ Poems, Including Translations. Biographies & Letters (Illustrated)

The Encantadas

Grand Teton [Wyoming] National Park

African Nature Notes and Reminiscences

Wild Animals at Home

Descriptions of Two Species of Frogs, Genus Ptychohyla

My First Summer in the Sierra (Illustrated Edition)

Birds in Town & Village

The turtles, snakes, frogs and other reptiles and amphibians of New England and the north

Hunting the Grisly and Other Sketches

Colin Clout's Calendar: The Record of a Summer, April-October

Shoshone National Forest, Wyoming

Birds in Town & Village

Watched by Wild Animals

Scott Burton in the Blue Ridge