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Shell Hills.

3,887

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4, 068

U.S. Geological Survey

5,000

U.S. Coast and Geodetic Sur

2,843

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2, 404

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5,485

U.S. Geological Survey

5,000

U.S. Coast and Geodetic Sur

4,060

vey.

U.S. Geological Survey

2,500

U.S. Coast and Geodetic Sur

3,888

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