(WI-46-18) NE of Newburg, Ozaukee County, WI. CR Y NE 1.1 miles from jct with WI33 in Newburg, continue E. on Hawthorne 0.15 miles to the building on the S. side of the road at the Riveredge Nature Center, 4458 W Hawthorn Drive. (10-24-01, N43° 26.354', W88° 01.428')