- S1/2 sec. 25, Brooks Tp., ca. 5.5 mi. ESE of Newaygo.1
- S1/2 sec. 30, Croton Tp., ca. 6.5 mi. ESE of Newaygo.1
- SE part of Standish.1
- SE1/4 sec. 15, Jefferson Tp., ca. 7.5 mi. SE of Hillsdale.1
- SW side of Whitman Lake approx. 25m from shoreline. T2S R9W Sec. 13, NW1/4 SE1/41
- Saint Mary's Farm, Monroe,1
- Sanilac1
- Santa Fe1
- Santo Domingo1
- Schoolcraft1
- Scio1
- Sec 21 & 28 T44N-R6W ca. 2 mi. west of Trout Lake1
- Sec 6 T42N-R31W. NW of Lake Mary.1
- Sec 7 T36N-R28W ca. 10 1/2 miles WNW of Daggett.1
- Sec. 5 & 6 T49N-R41W. ca. 7 mi. NE Bergland.1
- Section 24, Summerfield Twp., Wells Road north of Todd Road. East of Route #23.1
- Seney National Wildlife Refuge1
- Soldier's Home [Grand Rapids]1
- South Haven,1
- Southeast corner of field across from schoolhouse. South Manitou Island1