A friend of the family is having trouble with a Beaver population that has took up residence on a feeder creek for the Mahoning River that runs through the middle of his farm property. The Beaver have built an excessively large dam across the creek, which has significantly raised the water level in the creek, and has caused it to spread across the hay field and is swelling into the neighbors driveway. He is trying to find out what his legal rights are and what the best method of eradicating the problem would be. Does anybody have the best contact information for the Ohio DNR for this particular situation and does anybody have any other suggests alongside of contacting the ODNR? Thanks in advance!