Erdmann launch_W547 Hwy 28
Washington County, Wisconsin · Theresa Marsh
Boat Ramp CARRY-IN
Maintained by: STATE(DNR)
Amenities
Boat RampRamp: Gravel
Location & Directions
GPS: 43.4293°N, 88.4256°W — Get Directions
Other Access on Theresa Marsh
Data sourced from Wisconsin DNR public water access records. Last verified: March 19, 2026. Learn how we maintain this data.