Mountains

The Crest of the Continent: A Summer's Ramble in the Rocky Mountains and Beyond

Wolf and Coyote Trapping: An Up-to-Date Wolf Hunter's Guide

The Rocky Mountain Wonderland

The Rocky Mountain Wonderland

White Mountain Trails

Remote Islands

Mountain Living

Life in Sahara

The Flower-Fields of Alpine Switzerland: An Appreciation and a Plea

Himalayan Journals — Complete

Narrative of a Journey to the Summit of Mont Blanc

The Spell of the Rockies

The Spell of the Rockies

The Challenge of the North

Devils Tower National Monument

Days in the Open

Five Years in the Alleghanies