The Ottawa Lake boat ramp is located at Ottawa Lake Recreation Area in Wisconsin, USA. It is a concrete boat ramp that provides easy access to the water. The ramp is approximately 20 feet wide, which is wide enough to accommodate most types of watercraft, from small boats and kayaks to larger pontoons and fishing boats.

The boat ramp at Ottawa Lake provides access to the 17-acre Ottawa Lake, which is a popular spot for fishing, boating, and swimming. The lake is located within the Kettle Moraine State Forest, which offers many other recreational activities for visitors, including hiking, camping, and wildlife viewing.

According to the Wisconsin Department of Natural Resources, the following watercraft are permitted on Ottawa Lake:

- Electric motors only (no gas-powered motors allowed)
- Boats with a maximum length of 16 feet
- Canoes and kayaks
- Paddleboards and sailboards

It is important to note that all watercraft must comply with Wisconsin's boating regulations, including registration and safety requirements.

Overall, the Ottawa Lake boat ramp is a great spot for anyone looking to enjoy a day out on the water in Wisconsin. The ramp is well-maintained and provides easy access to a beautiful lake within a scenic state forest.