| About the lake
- Artificial lake, located in Union Grove State Park
- Size: 105 acres
- Length of shoreline: 5.7 miles
- County: Tama
- Location: Four miles south of Gladbrook
- Nearby towns: Garwin, Gladbrook, Green Mountain
- Listed on the state's impaired waters list since 2004
- Recreational uses: swimming, fishing, boating
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