- About 4.5 miles west of Port Sanilac1
- About 5 miles northwest of Reading, south side of Hemlock Lake.1
- Adrian Twp. NW of M-52 0.2 mi. NE of Curtis Road.1
- Agricultural College1
- Allegan State Game Area; 4 miles west of Allegan. 75' south of Allegan Dam Road, 300' west of Lake Allegan.1
- Alma1
- Along Manistee River, Brown Township, about 5 miles SW of Brethren1
- Along Old Indian Trail near dunes border, Platte Township1
- Along road (King Mill) west of Five Lakes on north side of Lapeer Game Area north of Lapeer1
- Along route M37, about 3 miles north of Baldwin1
- Alpena Twp. On Nineth Street Bridge.1
- Ann Arbor,1
- Ann Arbor, along RR tracks near bottom entrance to Nichols Arboretum.1
- Ann Arbor. Along S. State St., roadside-south end of Maclura hedge beyond brown house1
- Ann Arbor. SW corner of Rose and White Aves.1
- Ann Arbor. Just below Newcombe's house.1
- At Fontinalis Run1
- At Middle Village, 1 mile south of Good Hart1
- At end of Miachaud Road1
- Au Train Falls1