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The Importance of Ground Water in the Great Lakes Region
Water Resources Investigations Report 00 - 4008

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Figure 11

 [Map: Figure 11 - Average ground-water and surface-runoff components of selected watersheds]

Figure 11. Average ground-water and surface-runoff components of selected watersheds in the U.S. portion of the Great Lakes Basin (from Holtschlag and Nicholas, 1998).

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