Aspen Region

Aspen & Central Colorado trails: a hiking guide

Warren Ohlrich.

Aspen Ski and Snowboard Guide

Neal Beidleman

The geologic story of the Aspen region: mines, glaciers, and rocks

by Bruce Bryant and Peter L. Martin.

The lost journals of Charles S. Armstrong: from Arkport, New York to Aspen, Colorado 1867-1894

Christian J. Buys.

Aspen High Country: the geology : a pictorial guide to roads & trails

by David Laing and Nicholas Lampiris.

The best Aspen hikes

Rod Martinez

The Aspen dayhiker

Ruth and Peter Frey ; [cover and illustrations by Donna Currier].

A Guidebook to the Aspens: Snowmass, Buttermilk, Aspen Mountain

American Express ... [et al.] ; Jamie Marshall, editor.

Soil survey of Aspen-Gypsum Area, Colorado, parts of Eagle, Garfield, and Pitkin counties

United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of the Interior, Bureau of Land Management, and the Colorado Agricultural Experiment Station.

Day hikes in Aspen, Colorado

by Robert Stone ; photographs by Robert Stone.