RE: Wilhelm or nearby
Kahl is about .3 to .5 miles wide and about 1.25 miles long. Electric motors are permitted.
I know the lake has your typical panfish, bass, walleye, and musky. In the past they have taken some really nice perch and walleye out of the lake. Good size crappies have been harvested also.
There are two boat launches, North shore (Venango County) and the South shore (Clarion County). The East end of the lake is not very deep maybe 10-12 feet. The West end down by the dam will be the deepest. Not sure of the depth. Maybe someone else can help there.
I've fished it a few times but not enough to learn the lake.
Hope this helps..