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9780871089281
Ruth Carol Cushman and Glenn Cushman have hiked, skied, and backpacked Colorado trails together for more than thirty-three years. Ruth Carol, a retired reference librarian, is coauthor of Colorado Nature Almanac, Boulder County Nature Almanac, and the Shortgrass Prairie. Glenn, a retired aerospace engineer, is author of numerous technical papersCushman, Ruth C. is the author of 'Boulder Hiking The Best of the Plains, Foothills, and Mountains', published 2002 under ISBN 9780871089281 and ISBN 0871089289.
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