- Near the Mio Dam along M-33.1
- No data1
- 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
- On road (Mt. Tom Rd.) from Hunt Creek to Mio.1
- Parmarlee Bridge, Au Sable & M-144, N. of Luzerne.1
- Shamrock Lake.1
- Station 151
- Station 271
- Swamp along East Branch of Big Creek downstream from Mapes Rd.1
- T26N R2E Sec 12 along M-33 near Mio Dam.1
- T26N, R2E, Section 36 along Co. 604, 4 mi. south of Mio.1
- T27N, R3E, Sect. 28. Ca. 4 miles northeast of Mio.1
- Twin Lake, Sta. No. 1 T25N, R2E, Sec. 251
- Under power lines ½ mi. S.W. of the McKinley bridge ca. 8 mi. E. of town of Mio. Mentor Twp.1
- W end of Muskrat Lake, ca. 9 mi. NW of Mio.1
- W1/2 Comins Twp., ca. 2 mi. NE of Fariview.1
- W½ Comins Twp., ca. 6.5 mi. N. of Mio.1
- at McKInley Bridge, near center sec. 15, T26N, R4E.1
- at NW cor. of M-33 and M-72 in town of Fairview. Comins Twp. T27N, R3E, Sec. 15, SE1/41