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Point Reyes National SeashoreVisitors on the Earthquake Trail learning about the 1906 Earthquake from a ranger
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Point Reyes National Seashore
Restoration of the Lower Glenbrook Quarry and Dam Removal at Turney Point
Glenbrook Drainage showing breached dam. Chimney Rock in the background.
Lower Glenbrook Dam

The Restoration of the Lower Glenbrook Quarry and Dam Removal at Turney Point Environmental Assessment (1,155 KB PDF) examines alternative means to restore natural hydrologic function and assesses the potential environmental effects of the implementation of each strategy. This Environmental Assessment addresses removal of the remnant portions of the Lower Glenbrook Dam, which breached in 1982, and restoration of the adjacent spillway and quarry areas used to construct the original dam. The remains of the dam and disturbed lands associated with the quarry and spillway are considered a non-conforming structure in the Philip Burton Wilderness. The project is intended to restore natural conditions and enhance estuarine habitat in this portion of Drakes Estero. The project would not result in habitat conversion and is consistent with other restoration efforts in the park such as the Coastal Watershed Restoration and Giacomini Wetland Restoration. This Environmental Assessment evaluates the potential environmental consequences of three alternative strategies for implementing the Lower Glenbrook Quarry and Dam Removal at Turney Point Project.

Persons who wish to submit written comments on the draft Environmental Assessment are encouraged to do so. Written comments may be mailed to Superintendent, Point Reyes National Seashore, Point Reyes Station, CA 94956 or emailed. All comments must be postmarked or transmitted no later than February 22, 2008.

COMMENTS: Before including your address phone number, email address, or other personal identifying information in your comment, you should be aware that your entire comment, including our personal identifying information, may be made 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. As always, the National Park Service will make available to public inspection all submissions from organizations or businesses and from persons identifying themselves as representatives or officials of organizations and businesses. Anonymous comments may not be considered.

The comments and feedback received by the National Park Service from the public will assist us in refining the proposal and ensuring that public concerns and issues are included in the final Environmental Assessment.

Environmental Assessment - January 18, 2008 (1,155 KB PDF)

Letter to Interested Parties - January 18, 2008 (44 KB PDF)

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Elephant seals at the main colony at Point Reyes  

Did You Know?
Northern elephant seals (Mirounga angustirostris) began breeding at Point Reyes in 1981 after being absent for over 150 years. The population breeds at terrestrial haul out sites at Point Reyes Headland, one of only eleven mainland breeding areas for northern elephant seals in the world.

Last Updated: May 23, 2008 at 18:53 EST