| Specimen ID | 116677 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | WI |
| County | Grant |
| Locality | Mississippi River (R.M. 608) at the Wisconsin Power & Light's Dewey Generating Station near Cassville |
| Mapping Accuracy | Accurate |
| HUC8 Name | Grant-Little Maquoketa |
| HUC8 Number | 07060003 |
| HUC10 Name | Sny Magill Creek-Mississippi River |
| HUC10 Number | 0706000307 |
| HUC12 Name | Miners Creek-Mississippi River |
| HUC12 Number | 070600030705 |
| Map | |
| Collection Day | 26 |
| Collection Month | 8 |
| Collection Year | 1992 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Record Type | Literature |
| Verifier | Dennis Blackbourn, WPL Master Lab & instrument tec |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Year Class | adult |
| Size | 7 mm |
