You searched for: Place Alpena Twp. T31N, R8E, Sec. 22 NE1/4 on E. side of Alpena Power Co. storage-garage building at the Ninth St. Dam on the Thunder Bay River. Remove constraint Place: Alpena Twp. T31N, R8E, Sec. 22 NE1/4 on E. side of Alpena Power Co. storage-garage building at the Ninth St. Dam on the Thunder Bay River. Topic Echium Remove constraint Topic: Echium