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21st Ave Boat Launch
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21st Ave Boat Launch - Adams County WI on northeast side of Castle Rock Lake more information at including photos https://castle-rock-lake.com/21st-boat-launch
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OpenStreetMap1 data sourceUpdated Mar 2026
21st Ave Boat Launch is a public boat ramp on Castle Rock Lake in Adams County, Wisconsin (54613). GPS coordinates: 44.0140°N, 89.9794°W.