United States, Minnesota, Fillmore, Dorer Memorial Hardwood State Forest. Fillmore Co. Approx. 2.5 mi SE of Chatfield. On the S side of the Root River (Middle Branch) where Hwy. 2 crosses the ri Fillmore Co. Approx. 2.5 mi SE of Chatfield. On the S side of the Root River (Middle Branch) where Hwy. 2 crosses the river. T104N, R11W, Sec. 15.. 104N 11W 15