Map of Proposed Boundaries of Grand Canyon National Park

View a map of the proposed boundaries on the eastern end of Grand Canyon National Park.

Map of proposed boundaries, eastern Grand Canyon, western Navajo Nation

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Related Resources

Line graph showing average arsenic levels (2017–2025) at Pinyon Plain Uranium Mine wells, with some readings exceeding EPA’s safe drinking water limit. Inset map marks well locations.

Arsenic Contamination at Pinyon Plain Mine

Rising arsenic levels in monitoring wells at Pinyon Plain uranium mine raise concerns about possible contamination of groundwater in the Grand Canyon region.
Magazine cover and feature spread titled "After the Fires," showing a forest landscape and a large cloud of smoke rising over a canyon at sunset.

2026 Spring Advocate

The spring 2026 edition of the Grand Canyon Trust’s Colorado Plateau Advocate magazine, with a feature on rebuilding after the Grand Canyon fires, plus the 2026 Impact Report.