In this book, longtime park visitor and professional geographer Bob O'Brien explores the National Park Service's attempt to achieve "sustainability"--a balance that allows as many people as possible to visit a park that is kept in as natural a s
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In this book, longtime park visitor and professional geographer Bob O'Brien explores the National Park Service's attempt to achieve "sustainability"--a balance that allows as many people as possible to visit a park that is kept in as natural a s
Read Less