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Washington University - St. Louis - Summer 2012 | ||
Section 31 | ||
 | The Geocaching Handbook, 2nd: The Guide for Family Friendly, High-Tech Treasure Hunting (2nd Edition) by Layne Cameron, Dave Ulmer (Foreword) Paperback, 144 Pages, Published 2011 ISBN-10: 0-7627-6383-3 / 0762763833 ISBN-13: 978-0-7627-6383-2 / 9780762763832 Ten years after it all began, geocaching is still going strong. Both the number of geocaches and the number of geocachers are in the millions, in more than 100 countries, and continue to grow. This fascinating, high-tech yet family-friendly outdoor activity--which combines aspects of treasure huntin | |