Jericho Lake Park is located on the West side of Aurora, in Kane County. It is a 20.9 acre reclaimed rock quarry with a maximum depth of 26 feet, steep sided lake with very clear water. The shoreline is mowed in several areas to allow access for shore fishing or you can bring and use a small boat with an electric motor only.
http://www.foxvalleyparkdistrict.org/files/u14/Lake_Maps_Jericho.com