| Answer | Crossword Clue |
|---|---|
| TIDALBASIN | Potomac River feature |
| PENTAGON | Potomac River landmark. |
| SHENANDOAH | River into the Potomac. |
| SHENANDOAH | River that flows into the Potomac |
| FOGGYBOTTOM | U.S. Department of State, informally, or its low-lying Potomac River location |
| BANK | River feature |
| ISLET | River feature |
| BEND | River feature |
| DELTA | River feature. |
| DELTA | River feature |
| FALLS | River feature |
| DELTA | River mouth feature |
| LEVEE | Mississippi River feature |
| DELTA | Mississippi River feature |
| SHOSHONEFALLS | Feature of Snake River. |
| IOOOISLANDS | St. Lawrence River feature |
| ICE | Moskva River feature, often |
| PALISADE | Hudson River scenic feature. |
