(Shiawassee River, 1984) across Shiawassee River in Owosso, Shaiwassee County, MI. Curwood Castle Dr. N. 1 ½ blocks from jct with Main St. to the bridge on the E. side of the road. Park & walk 100’ E. to the bridge. (N42 59.938 W84 10.493) Photos by Mark Comstock & Kim Flanery 11-5-21.