(Heart #1) in Hart, Ocena County, MI. Polk Rd. E. 0.35 miles from jct with State St. on the S. side of Hart, S. on Oceana Dr. 0.25 miles to the tower on the W. side of the road. (N43 41.104 W86 21.641) Photos by Mark & Gordie Comstock & Larry Baker 9-23-20.