USGS Grand Canyon B-roll
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Location: Page, AZ, USA
Glen Canyon Time-Lapse (River Mile 3)
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Location: Page, AZ, USA
Glen Canyon Time-Lapse (River Mile 45)
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Location: Page, AZ, USA
Opening a Dam to Study and Improve Resources in the Grand Canyon
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Location: Page, AZ, USA
Marmot Dam Removal, Sandy River, Oregon: Time-Lapse
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Location: Sandy River, OR, USA
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