You searched for: Place Michigan Remove constraint Place: Michigan Place Kent Remove constraint Place: Kent Place Oakfield Twp., Flat Iron Lake, ca. 9 miles east of Rockford. Northeast margin of lake at Calvin College dock. Remove constraint Place: Oakfield Twp., Flat Iron Lake, ca. 9 miles east of Rockford. Northeast margin of lake at Calvin College dock. Topic Salix Remove constraint Topic: Salix