Sheehan Island
- Location: Illinois River
- Mile Marker: 234.9
- Lat / Lon: N 41° 19.605' / W 088° 54.301'
- Depth: 12-13 ft.
Holding:
0
Good, Mud
Wind Protection:
0
Somewhat exposed NE and SW
Wake Protection:
0
Somewhat exposed NE and SW
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