You searched for: Place Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; east-bank of Fleming Creek just south of auto bridge Remove constraint Place: Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; east-bank of Fleming Creek just south of auto bridge Topic Ambrosia Remove constraint Topic: Ambrosia