Contour map · Illinois
Open River South
72 ftdeepest spot
22,594acres
10 ftcontour lines
What you get on Open River South
- Every drop-off on a full contour map, lines every 10 ft, from the USGS / USACE survey.
- Drop a pin anywhere and see the depth under it.
- Riggs tells you where to fish and what to throw today, from the weather, water temp, likely species and the odds.
- Follow My Boat (Pro) shows the depth under your boat as you move.
Free to download. A free pick every day; contour maps with Pro or Guide.
Open River South at a glance
| Location | Illinois |
|---|---|
| Size | 22,594 acres |
| Deepest spot | 72 ft |
| Contour lines | every 10 ft |
| Survey | USGS / USACE |
Boat ramps and marinas on Open River South
4 boat ramps: Grand Tower Ramp, Moccasin Springs Boat Ramp, Red Star Access.
In the app, every one is on the map, next to the contour lines.
Ramp and marina locations © OpenStreetMap contributors (ODbL).
Lakes near Open River South
- Vienna Lake29 mi
- Kincaid Lake Fish Pond 135 mi
- Kincaid Lake Fish Pond 235 mi
- Kincaid Lake Fish Pond 335 mi
Contour map: USGS / USACE. Rigology shows the agency's survey and is not affiliated with it.