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6.5 Mile Site (Hidden Sloughs)as seen from the river looking north.

Environmental Assessment for Hidden Slough Pilot Site

Glen Canyon National Recreation Area » Environmental Assessment for Hidden Slough Pilot Site » Document List

The National Park Service is requesting public comments on an Environmental Assessment for the tamarisk removal and revegetation activities at the Hidden Slough pilot site on the Colorado River. The project site is located on the right bank, 6.5 miles upstream from Lees Ferry. In 2006, Glen Canyon National Recreation Area conducted public scoping for the initiated an environmental assessment (EA) for a 20 year master plan for tamarisk removal and native vegetation restoration of the Colorado River between Glen Canyon Dam and Lees Ferry: currently identified as the Colorado River Riparian Revegetation Plan (CRRRP). During the public scoping period, the park staff determined that there was insufficient data to conduct impact analysis for the entire project corridor; therefore the focus of the EA was narrowed to just the initial pilot site at Hidden Slough. Data, including information about vegetation success and bird diversity and density will be collected for the next three years. This data, along with lessons learned about conducting tamarisk removal and revegetation activities at a remote site along the river will help us identify impacts and plan for the remaining sites identified in the CRRRP. Appropriate NEPA documentation will be developed for the CRRRP before any further revegetation activities occurs.

This environmental assessment evaluates two alternatives: a No-Action Alternative and a Proposed Action Alternative. The No-Action Alternative addresses current and future conditions at Hidden Slough project site. The Proposed Action Alternative addresses impacts from the removal of tamarisk and planting of native species.

This notice is an opportunity for the public to identify any issues or concerns they may have regarding this project. All comments are due by October 4, 2008. Comments may be posted on the NPS Planning, Environment and Public Comment website at http://parkplanning.nps.gov/ or mailed to: Hidden Slough EA, Glen Canyon NRA, P.O. Box 1507, Page, AZ 86040 or fax to (928) 608-6259.

Please be aware that your entire comment, including your personal identifying information, such as address, phone number, etc., may be publicly available at any time. While you can ask us in your comment to withhold your personal identifying information from public review, we cannot guarantee that we will be able to do so.


Contact Information
Brian Casey
P.O. Box 1507
Page, AZ 86040
(928) 608-6209