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Castle Rock Lake WI - Juneau & Adams County


Castle Rock Lake was manmade and built back in the late 1940’s by Wisconsin River and Power Company by constructing a hydro-electric dam called the Castle Rock Dam.  With an impoundment of 13,000+ acres of water, it is Wisconsin’s 4th largest body of waterCastle Rock Lake is one of Central WI. most popular attractions and has been for many years.  Today it is used for boating, fishing and swimming with something going on nearly all the time.

Castle Rock Lake is part of the Wisconsin River Flowage System which includes Lake Petenwell (WI’s 2nd Largest) to the north.  From the Petenwell Dam, there is a little stretch of Wisconsin river before it opens up into Castle Rock lake.  After Castle Rock Dam the water turns back into the Wisconsin river and flows all the way to the Wisconsin Dells dam.  “You CANNOT boat from Lake Petenwell to Castle Rock Lake to the Wisconsin River because to the hydroelectric dams.”

The Wisconsin River is just one source of water that helps fill the lake, there also Big Roche-A-Cri Creek, Duck Creek, & Little-Roche-A-Cri creek.  Buckhorn State Park is in Juneau county on the West side of the lake.  Castle Rock County Park is in Adams County which is on the east side. 


Adams County side Townships - Quincy & Strongs Prairie

WI DNR Lake Map


Photos & Pictures


Castle Rock Lake, WI Quick Specs.

Types of Fish: Largemouth Bass, Walleye, Northern Pike, Smallmouth Bass, CatfishMuskies and Panfish! 

Castle Rock Lake

13,995 Acres
Max Depth........
36 feet
Average Depth...
Public Access.....
Boat Ramp
Wake Rules ........

Lakefront Homes & Deed Access Houses . - More Castle Rock Homes

Satilite Map of Castle Rock Lake , Adams County, Wisconsin

View Castle Rock Lake Map - WI. in a larger map


Waterfront Properties & Deed Access Lots. - More Castle Rock Vacant Lots

Area Links:


Adams County & Juneau County Wisconsin.

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