Fish Lake WI | Castle Rock Lake & Wisconsin River
Just south of Petenwell Dam is a small section of the Wisconsin River before it opens up into Castle Rock Lake aka Castle Rock Flowage. On this small section of the river is a small backwater slough named Fish Lake which almost goes up to Petenwell Rock (Public Land) in Juneau County WI. There's a little dirt parking lot off of corner of Cty Rd G for walk-in boat access.
