Our National Parks and the Search for Sustainability by Bob R. O'Brien

Our National Parks and the Search for Sustainability

Bob R. O'Brien with Gary O'Brien (Illustrator)

264 pages missing pub info (editions)

nonfiction art nature science
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"Yosemite Valley in July of 1967 would have had to be seen to be believed. There was never an empty campsite in the valley; you had to create a space for yourself in a sea of cars, tents, and humanity.... The camp next to ours had fifty people in ...

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