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Grand Canyon National Park

2009/2010 Accomplishment Report

Protecting and improving the Canyon for future generations

Park staff worked with other Department of Interior (DOI) agencies on the need to limit mining within the Grand Canyon watershed. After Secretary of the Interior Ken Salazar announced an exclusion of public lands around the park from minerals development, staff cooperated with the Bureau of Land Management (BLM), U.S. Geological Survey (USGS), U.S. Fish and Wildlife Service (USFWS) and the U.S. Forest Service (USFS) on technical baseline studies of resource conditions in the greater Grand Canyon region. As part of the DOI uranium mining effects effort, park staff undertook studies of seeps and springs, aquatic invertebrates, amphibians, vegetation, wildlife, natural sounds, and ethnographic resources. Water releases from Glen Canyon Dam continue to affect park resources and preservation efforts. The park has played a leadership role in working

with other DOI bureaus to develop “desired future conditions” for park resources affected by dam operations.

They also continued to collaborate with the DOI “family” in the Glen Canyon Dam Adaptive Management Program, working to restore high flow protocols and on other key science and management programs. The staff at Grand Canyon was instrumental in advocating for the successful 2008 high-flow event. As a result, the park provided DOI with solutions to problems created by dam operations. These solutions do not affect water allocations to Colorado River states. They will have only minor effects on power generation and will not increase costs significantly for rate payers. These changes, based on science, will help resortation efforts in Grand Canyon.

Water release from Glen Canyon Dam during a high-flow experiment. NPS photo


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