Highway O - South

**Location & Facilities**
Highway O - South is a boat ramp access point on the Big Eau Pleine Reservoir near Mosinee in Marathon County. This site provides a concrete launch facility with parking for boaters seeking access to the 6,348-acre reservoir. The access point is conveniently located on the south side of the lake, making it a practical entry point for day trips and longer paddling excursions.

**Water Conditions & Recreation**
The Big Eau Pleine Reservoir offers calm, deepwater paddling (maximum depth of 46 feet) ideal for kayakers and canoeists looking for a more relaxed experience compared to moving river sections. The lake supports healthy populations of musky, smallmouth bass, northern pike, and walleye, making it popular with anglers as well as paddlers. Multiple public boat landings around the reservoir provide additional access and exit options if you're planning a longer paddle or shuttle trip.

**Nearby Paddling Options**
If you're interested in paddling the river itself, Highway M to Highway 153 offers about 0.9 miles of exploration with scenic rock walls along the banks. The reservoir access makes this a versatile destination for both reservoir-based paddling and connections to the river corridor above the dam.