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User carrying capacity for river-running the Colorado River in the Grand Canyon National Park Service Water Resources Division; National Park Service
Synthesis and Management Implications of The Colorado River Research Program National Park Service Water Resources Division; National Park Service
Survey of the Recreational Resources of the Colorado River Basin Clemson University Libraries Call number: i29.2: c71.
Humpback Chub recovery plan National Park Service Water Resources Division; National Park Service
Use Levels and Crowding in the Grand Canyon National Park Service Water Resources Division; National Park Service
Survey of Fishes, Mammals and Herpetofauna of the Colorado River in Grand Canyon National Park Service Water Resources Division; National Park Service
Human Waste Disposal on Beaches of the Colorado River in Grand Canyon National Park Service Water Resources Division; National Park Service
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1977-02

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National Park Service
Institute of Museum and Library Services
Clemson University