Beaver Dam on S. Branch of Root River in Forestville State Park. This dam is just upstream from one that was there two years ago. It is located about 80 yards downstream from the first road bridge in Forestville Park. We have also seen dams about 1 mile upstream, on Forestville Creek, and Canfield Creek within the park in the last few years. Beaver are quite common in the streams of S.E. Minnesota. There are also beaver in the old iron ore ponds south of Spring Valley. We have been canoeing for about 50 years now and did not see any beaver until about the early 1970's. During the 1950's and 1960's we saw none.