Watershed Info

Click here to download a zip file of the Iowa Great Lakes Watershed Management Plan.

LAKE STATISTICS

East Okoboji Lake
Area of lake: 1,843 acres
Maximum depth: 22 feet
Direct lake waterched: 11,779 acres
Indirect watershed to lake: 65,577 acres
Lake Impaired: No
Link to Iowa DNR Map: http://www.iowadnr.gov/fish/fishing/lakes/maps/eok30.gif

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Upper Gar Lake Stats
Area of lake: 38 acres
Maximum depth: 5 feet
Direct lake waterched: 217 acres
Indirect watershed to lake: 78,957 acres
Lake Impaired: Yes
Impairment: Noxious Algae Growth
Water quality improvement plan (TMDL): http://www.iowadnr.gov/water/watershed/tmdl/files/final/uppergar.pdf
Link to Iowa DNR Map: http://www.iowadnr.gov/fish/fishing/lakes/maps/min30.jpg

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Minnewashta
Area of lake: 118 acres
Maximum depth: 16.5 feet
Direct lake waterched: 289 acres
Indirect watershed to lake: 79,212 acres
Lake Impaired: No
Link to Iowa DNR Map: http://www.iowadnr.gov/fish/fishing/lakes/maps/min30.jpg

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Lower Gar
Area of lake: 264 acres
Maximum depth: 5.5 feet
Direct lake waterched: 11,102 acres
Indirect watershed to lake: 79,619 acres
Lake Impaired: Yes
Impairment: Algae and turbidity
Water quality improvement plan (TMDL): http://www.iowadnr.gov/water/watershed/tmdl/files/final/lowergar.pdf
Link to Iowa DNR Map: http://www.iowadnr.gov/fish/fishing/lakes/maps/lga30.pdf

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