Standing legacy: Ghost towns preserve the Ottawa Valley’s rich history. Photography by Paul Politis and text by Tobi McIntyre. (Source: Canadian Geographic
Stampede to Timberline, Colorado's Ghost Towns and Mining Camps by Muriel Sibell Wolle, Revised and Enlarged Edition, Paperback, Swallow Press, 1991, ISBN 0-8040-0946-5
Timberline Tailings, Tales of Colorado's Ghost Towns and Mining Camps, Muriel Sibell Wolle, Sage Books, Swallow Press, 1993, Paperback, ISBN 0-8040-0946-5; older hardback editions are available as used books.
