Environmental Protection

Ethel

A Kaleidoscope of Butterflies

Fossil Forests of the Yellowstone National Park

The Geology of Button Bay State Park

Take a Can of Salmon

The Geology of D.A.R. State Park, Mt. Philo State Forest Park, Sand Bar State Park

John Muir: The Story of My Boyhood and Youth & Letters to a Friend (Illustrated Edition)

The Incredible Travel Tales of John Muir (Illustrated Edition)

The Mountains of California (With Original Drawings & Photographs)

Northwold Manor Reborn

House Flies

The Freewood Years

The Geographical Distribution of Animals

Alaska Days with John Muir: 4 Books in One Volume

GREENpeace VIEWS

The Sustainable Living Guide

The Last Sunset in the West

The Impossible Five

Where Men No More May Reap or Sow

Conservation of marine birds of northern North America