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Cowan Lake, also known as Cowan Creek Reservoir, is a lake within Cowan Lake State Park in Clinton County, Ohio, United States. Its surface area is . Cowan Creek was named for John Cowan, the first surveyor of the area.

Cowan Lake State Park, which includes the lakes and its immediate surroundings, was dedicated in 1968.

References

  • Cowan Lake Sailing Association
  • Cowan Lake Fishing
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