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Twelve Mile Island - south

Location: Illinois River
Mile Marker: 12.4
Lat / Lon: N 39° 02.400' / W 090° 34.540'
Depth: 24 ft.
Description:
DISCLAIMER: Before committing to an anchorage, you should confirm that the location is not governed by a regulation that may conflict with your plans. An increasing number of states and municipalities are enacting laws that define where and how long you may anchor.

Holding:

4.50

Good, Mud

Wind Protection:

4.50

Somewhat exposed NE and SW

Current Flow:

4.00

Wake Protection:

4.00

Somewhat exposed NE and SW

Scenic Beauty:

3.50

Ease of Shopping:

1.00

Shore Access:

1.50

Pet Friendly:

1.00

Cell Service:

1.00

WiFi:

1.00

Review for Twelve Mile Island - south

Reviewed by: Chuck Swaim, Lindy Lou, on Aug 18, 2025
Vessel Type: Power
LOA: 47'
Draft: 4.5'

Overall Rating:

5

Holding:

5

Wind Protection:

5

Current Flow:

5

Wake Protection:

5

Scenic Beauty:

3

Ease of Shopping:

1

Shore Access:

2

Pet Friendly:

1

Cell Service:

1

WiFi:

1

We did anchor training at this location, which also coincided with a need to wait out a storm cell. This stretch of water does have some homes on it but the traffic was non-existent on a Monday. We did not stay overnight but would use this anchorage if needed.

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Review for Twelve Mile Island - south

Reviewed by: Capt. Mac Rubel, Cruising Editor, Janthina, on Sep 15, 2021
Vessel Type: Power
LOA: 48'
Draft: 5.0'

Overall Rating:

2

Holding:

4

Wind Protection:

4

Current Flow:

3

Wake Protection:

3

Scenic Beauty:

4

Ease of Shopping:

1

Shore Access:

1

Pet Friendly:

1

Turn off channel towards LDB 300 yards past downstream tip of the island in 12' normal pool or more of water and to up the narrow chute towards the island with depth increasing to over 20' at the tip of the island. Chute is narrow and depth will require more chain so we do not recommend this anchorage.

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