- Mentor Twp. 1/2 mi. N. of Co. Rd. 600 or 3 1/2 mi. S.E. of town of Fairview. on E. side of Weaver Rd.1
- Mentor Twp. 100 ft. W. of the McKinley Bridge 8 mi. E. of town of Mio.1
- Mentor Twp. T26N, R3E, Sec. 11 NE1/4 on west side of Weaver Rd. ca. 500 ft north of Co. Rd. 600 ca. 4.5 mi west of McKinley.1
- Mentor Twp. T26N, R3E, Sec. 11 SW1/4; on north side of Co. Rd. 600 across from fishing site on the AuSable River1
- Mentor Twp. T26N, R3E, Sec. 12 NE1/4; 500 ft. south of Co. Rd. 600 1.1 mi. west of Old State Rd.1
- Mentor Twp. T26N, R4E, Sec. 15 SE1/4 in the village of McKinley1
- Mentor Twp. T26N, R4E, Sec. 7 NW1/4; 1/4 mile south of Co. Rd. 600 about 3.5 miles west of McKinley.1
- Mentor Twp. ¼ mi. S. of Co. Rd. 600 on N. side of the Au Sable River. Ca. 3 mi. W. of Village of McKinley.1
- Mio area1
- Mio.1
- N. side of the Au Sable River ca. 3 mi. W. of village of McKinley. Mentor Twp. 1/4 mi. S. of Co. Rd. 600 on Glennie Cr.1
- NE 1/4 sect 2, T28N R1E, ca. 4 Km SE of Lewiston.1
- NE of intersection of Helmer Lake Rd. and Mt. Tom.1
- Near McKinely Bridge.1
- Near Mio Dam along M-33.1
- Near Mio, Huron National Forest.1
- Near intersection of Downey Mann T.T. and Co. 610.1
- Near the Mio Dam along M-33.1
- On N. side of County Rd. 600 along N. side of the Au Sable Riv. 2½ mi. W. of Co. Rd. 601 1½ mi. N.E. of Mio. Mentor Twp.1
- On old road from Hunt Creek Experiment Station to Mio.1