- 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.1
- Alpena Twp. T31N, R8E, Sec.&, SE1/4400 ft. E. or downstream from base of Four Mile Dam N.W. of Alpena.1
- Alpena Twp. T31N, R8E, Sec.21, SW1/4 300 ft. S. of M-32 and 150 ft. E. of Bagley St. on W. side of Alpena.1
- Alpena Twp. T31N, R8E, Sec.21, SW1/4 on N. side of M-32 on W. side of Alpena.1
- Alpena Twp. T31N, R9E, Sec. 7 SW1/4; 1/4 mile west of power generators at the Four-Mile Dam.1
- Alpena Twp. T31N, R9E,Sec. 19 NW1/4 About 100 ft. south of North Point Road.1
- Alpena Twp. T31N,R7E,Sec.22, SW1/4 1/4 mi. NW of corner of M-32 and Airport Rd. about 6 mi. W. of Alpena.1
- Alpena Twp. T31N,R8E, Sec 15 SW1/4 on campus of Alpena Community College.1
- Alpena Twp. T31N,R8E, Sec.21, SW1/4. 300ft. E. of Bagley St. 500 ft. N. of the Thunder Bay Riv. on W. side of Alpena1
- Alpena Twp. T31N,R8E,Sec.16 SE1/4; at wildlife sanctuary observation area at SW corner of US-23 and Long Rapids Rd.1
- Alpena Twp. T31N,R8E,Sec.20,SE1/4 1/4 mi. due W. of Bagley St. bridge on old Potter Farm property on W. side of Alpena1
- Alpena Twp. T31N,R8E,Sec.27,SW1/4 on N. side of the Thunder-Bird Restaurant on State St. on S. side of Alpena.1
- Alpena Twp. T31N,R9E,Sec.22,NW1/4; .3 mile W. of Lake Huron Shore E. of Alpena.1
- Alpena Twp. T32N, R9E, Sec.6, NE1/4 near public boat-launching site at old port of Rockport.1
- Alpena Twp. W. side of Grass Lake.1
- Alpena Twp., 100 ft. north of D.&M. tracks on the east side of Long Lake ave.1
- Alpena Twp., Along N. shore 100 ft. E. of Four-mile Dam1
- Alpena Twp., ca. 5 mi. SW of Alpena, on West side of Devils Lake1
- Alpena Twp., on small point on Lake Huron at N. end of Huron Bay E. of Alpena.1
- Alpena Twp., stream at N.W. end of Evergreen Cemetery near Thunder Bay River1