| The Columbia Gazetteer of North America. 2000. |
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| Duncan Lake |
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| Duncan Lake, reservoir, Stephens co., S Okla., on small branch of Wildhorse R., 5 mi/8 km E of Duncan; c.3.5 mi/5.6 km long; 34°31'N 97°49'W. |
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| | | The Columbia Gazetteer of North America. Copyright © 2000 Columbia University Press. |
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