| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1462112 | MI | Baraga | 103 Keranen Road | 1984 | 04020105 | Dead-Kelsey | established |
| 1464439 | MI | Marquette | West Ridge Street | 1906 | 04020105 | Dead-Kelsey | established |
| 1467870 | MI | Marquette | North Shore, Mountain Lake; Huron Mountain Club | 1960 | 04020105 | Dead-Kelsey | established |
| 1468787 | MI | Marquette | Parking lot on Dam Road, Huron Mountain Club | 1969 | 04020105 | Dead-Kelsey | established |
| 1468830 | MI | Baraga | Huron Mountain Club | 1975 | 04020105 | Dead-Kelsey | established |
| 1469069 | MI | Marquette | Northeast shore, Rush Lake; Huron Mountain Club | 1960 | 04020105 | Dead-Kelsey | established |
Citation for this information:
U.S. Geological Survey, 2026,
Agrostis gigantea: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 1/17/2026