Mark Poffenbarger

Mountain Biking Washington, 3rd: A Guide to Washington's Greatest Off-Road Bicycle Rides (State Mountain Biking Series)  Amy Poffenbarger Mark Poffenbarger Paperback. Falcon, 2006-08-01 ISBN 9780762740819     Mountain Bike America: Washington, 2nd : An Atlas of Washington State's Greatest Off-Road Bicycle Rides (Mountain Bike America Guides)  Amy Poffenbarger Mark Poffenbarger Paperback. Globe Pequot, 2001-05-01 ISBN 9780762709250     Mountain Bike America: Washington: An Atlas of Washington's Greatest Off-Road Bicycle Rides  Amy Poffenbarger Mark Poffenbarger Scott Adams Paperback. Beachway Pr, 1998-05-15 ISBN 9781882997091