Muskrat records cluster around Virginia’s wetland refuges, led by Chincoteague and joined by Mason Neck and Great Dismal Swamp, tying the Eastern Shore to the Potomac and southeastern Coastal Plain. Reporting crests from March through May and drops sharply by autumn; the curve tracks observations around accessible marshes and waterways, not muskrat population density.
Data & sources
The data and visualizations on this page draw on these open sources:
- GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
- iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
- NatureServe ExplorerCC-BYthe state conservation rank
- IUCN Red Listattributed factthe global conservation status
- USGS NASpublic domainnative / introduced status
- Natural Earthpublic domainthe relief basemap
- USFSpublic domainnational-forest boundaries
- USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"




