Biological Opinion on Operation of Glen Canyon Dam

This biological opinion is in response to the proposed action to operate Glen Canyon Dam according to critera of the Modified Low Fluctuating Flow Alternative, selected in the final environmental impact statement. Read the opinion ›

Biological opinion on Glen Canyon Dam

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Related Resources

A December 2024 poll of 500 Arizona voters by public opinion research firm GQR found strong public support for Baaj Nwaavjo I’tah Kukveni – Ancestral Footprints of the Grand Canyon National Monument, which protects precious water sources and the ancestral homelands of Native American tribes near Grand Canyon National Park. Download the poll memo › Download […]