- Alpena Co., high on bank of U.S. 23 S. ¼ mi., S. of Squaw Bay1
- Alpena County Park, S. of bath house.1
- Alpena Township.1
- Alpena Twp. at N.W. edge of Evergreen Cemetery on M-32 W. on W. side of Alpena.1
- 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.1
- Alpena Twp. T31N, R8E, Sec.21, SW1/4 at N.W. edge of Evergreen Cemetery on N. side of M-32 on W. side of Alpena.1
- Alpena Twp. T31N, R9E, Sec.10 SW1/4 about 5 mi. N.E. of Alpena on the north side of Indian Road.1
- Alpena Twp. 200 ft. N. of Long Rapids Rd.1
- Alpena Twp. 2½ mi. S. of North Pt. Rd. about 4 mi. S.E. of Alpena. 50 ft. N. of Lake Huron shore at the address of 8286 North Pt. Shores Rd.1
- Alpena Twp. 5 mi. E. of City of Alpena.1
- Alpena Twp. 600 ft. E. of US-23 at S. end of Squaw Bay ca. 4 mi. S. of town of Alpena.1
- Alpena Twp. At Mich-E-Ke-Wis Park on S. side of city of Alpena.1
- Alpena Twp. At Sportman's Park Wildlife Sanctuary near observation area at SW corner of US-23 and Long Rapids Rd.1
- Alpena Twp. At whitefish Bay 1½ mi. E. of Alpena.1
- Alpena Twp. Garden at Ed Tatro residence at 415 Dawson St. on Alpena's N. side.1
- Alpena Twp. N.W. side of Evergreen Cemetery near S. bank of the Thunder Bay Riv. on W. side of Alpena.1
- Alpena Twp. Near the S. bank of Thunder Bay Riv. on W. side of town of Alpena.1
- Alpena Twp. Norwegian Creek, 200 yards north of Whitefish Bay.1
- Alpena Twp. On N. bank of Thunder Bay River W. of Bagley St. on W. side of Alpena.1
- Alpena Twp. On Nineth Street Bridge.1