- AuSable River.1
- AuSable Twp. T23N, R9N, Sec. 10 SE1/4; on west side of US-23 on north side of AuSable River at the mouth.1
- Ausable River, Cooke Dam Pond1
- Baldwin Twp. T22N, R8E, Sec. 22 NW1/4 S.W. side of Giant Family Center on S.E. side of US-23 ca. .9 mi. S.W. Aulerich Rd.1
- Baldwin Twp. .9 mi. SW of Aulerich Rd. (Airport Rd.) ca. 1/2 mi. E. of East Tawas. 200 ft. S.E. of US-23 at SW side of shopping center1
- Baldwin Twp. 2 mi. N. of Baldwin Resort Rd. ca. 4 mi. N.E. of East Tawas.1
- Baldwin Twp. 400 ft. S. of Midway store at new shopping center on US-23 ca. .7 mi. N.E. of East Tawas.1
- Baldwin Twp. T22n, R8E, Sec. 25, SW1/4 1/4 mi. west of US-23 just N. of E. Tawas1
- Between ¼ & ½ mi from dam [Foote dam]1
- Bissonette Rd.1
- Campground, Tawas Point State Park, Tawas Beach Rd, SE of Tawas City.1
- Collected in the counties bordering on Lake Michigan and Lake Huron, Tawas Pt., SE of Tawas City.1
- Cooke Dam Pond Ausable River,1
- Cooke Dam Pond, Au Sable River.1
- Cooke Dam Pond, AuSable River1
- Cooke Dam, ca 2 mi SW of; along Cooke Dam Rd1
- E of Foote Dam, AuSable River1
- E. side of Tuttle Marsh Rd.1
- East Tawas,1
- East Tawas, Lake Huron1