Castle Rock Flowage

Located in Arkdale, Adams County, the Castle Rock Flowage boat ramp provides public access to Castle Rock Lake, a 13,955-acre impoundment on the Wisconsin River. This access point features both a main boat ramp suitable for larger recreational vessels and a secondary ramp that provides direct access to a small creek feeding into the Wisconsin River, making it a good option for paddlers looking to explore downstream sections. The site includes parking and basic amenities for day-use boating.

Castle Rock Lake itself is a popular recreational destination known for variable wind and water conditions—paddlers should be prepared for potentially rough conditions and plan accordingly. The lake has a maximum depth of 35 feet and supports diverse fisheries. For those interested in longer paddling routes, the Two Rivers landing downstream offers the next public access point, though paddlers should note that the dam between Castle Rock Lake and the river section below presents a portage consideration. The site's proximity to Necedah National Wildlife Refuge adds opportunities for exploring the broader Wisconsin River ecosystem in this scenic central Wisconsin region.