You searched for: Place Alpena Twp. T31N, R8E, Sec. 7 SE1/4; about 1/4 mile south of Long Rapids Road and 1/4 mi. E. of power generators at the Four-Mile Dam. Remove constraint Place: Alpena Twp. T31N, R8E, Sec. 7 SE1/4; about 1/4 mile south of Long Rapids Road and 1/4 mi. E. of power generators at the Four-Mile Dam.