| Year built | 1654 |
|---|---|
| Area | 894 km² |
| Located in | Maryland |
| Country | United States |
| Body of water | Patuxent River, Chesapeake Bay |
| Population | 92783 |
| Native name | Calvert County |
| Described by | The American Cyclopædia |
| Part of | Arlington–Alexandria–Reston metropolitan division |
| Railway | |
| Bus | |
| Tram |
| Bike path | |
| Bike lane on roadway | |
| Cycling allowed on bus lane | |
| Bicycle street | |
| Open to cyclists | |
| Open to cyclists, good path | |
| Cycling prohibited | |
| Cobblestone |
| Long-distance bike route | (depending on scale) | |
| Long-distance bike route |
| Path |
| Long-distance hiking trail | (depending on scale) | |
| Long-distance hiking trail | ||
| Pedestrians prohibited |