Rock Lake is locally famous for its mysterious submerged stone structures, often referred to as the Aztalan underwater pyramids, which were discovered by divers in the early 20th century.
The lake is a glacial kettle lake, formed by the retreat of the Wisconsin glacier approximately 10,000 to 12,000 years ago.
The beach serves as a popular starting point for paddlers navigating the Rock Lake water trail.
Bartel's Beach is situated within a region historically settled by the Aztalan culture, a Middle Mississippian group known for their earthwork mounds.
Bartel's Beach is a public park located on the shores of Rock Lake in Lake Mills, Wisconsin. The site features a sandy beach area along with a boat launch facility. It provides shoreline access for swimming and non-motorized watercraft such as kayaks and canoes. The park includes a designated picnic area for visitors and basic restroom facilities. Its location on the northern end of Rock Lake offers direct views across the water. The grounds are maintained by the local municipality and serve as a primary recreational access point for the lake.
The shoreline at sunset looking south across the expanse of Rock Lake.
Bring water shoes to navigate the occasional rocky patches beneath the surface of the sandy beach area.
Arrive early on summer weekends as the parking lot capacity is limited and fills quickly.
Carry out all trash to help maintain the local water quality of Rock Lake.
Do not attempt to launch large powerboats from this specific location, as it is better suited for smaller watercraft.
Beach facilities are primarily maintained and fully operational during the summer season.
No glass containers allowed on the beach; keep pets on a leash in designated areas.
