| 100% | SILT | 4 | Mud deposited by a river |
| 74% | SILT | 4 | Mud, clay, or small rocks deposited by a river or lake |
| 58% | CANYON | 6 | Ravine formed by a river |
| 58% | WATERSHED | 9 | Area drained by a river |
| 53% | THEMOLDAU | 9 | Smetana composition inspired by a river |
| 53% | MILL | 4 | Structure historically found by a river |
| 51% | SILT | 4 | Deposit around a river's mouth |
| 51% | SILT | 4 | Deposit in a river's bottom |
| 50% | SILT | 4 | Sand deposited by river flow |
| 49% | TENN | 4 | State trisected by a river of the same name: Abbr. |
| 48% | WATERWAY | 8 | A river or canal route for journeying by water |
| 48% | URALGRACKLE | 11 | Black bird seen by a Russian river? |
| 48% | CRY | 3 | "___ Me a River," song by Justin Timberlake |
| 48% | ASIN | 4 | Portion of land drained by a river is called the River B___ |
| 47% | SILT | 4 | River deposit of mud or clay |
| 47% | DAM | 3 | Structure built by a beaver along the river |
| 45% | RAVINE | 6 | Deep and narrow, it's formed by a stream or river |
| 45% | BED | 3 | Area between the banks of a river ordinarily covered by water |
| 44% | SOILS | 5 | Dirties a cloth by getting mud on it |
| 43% | RHONE | 5 | River sourced by a glacier in the Swiss Alps |
| 42% | PLATTE | 6 | River paralleled by I-80 through a long stretch of the Plains |
| 41% | THUN | 4 | Lake —, body of water in central Switzerland formed by a widening of the Aare River |
| 41% | MERSEY | 6 | River crossed by a ferry in a 1965 top 10 hit |
| 40% | DREDGING | 8 | Scooping out mud from a river |
| 39% | DELTAS | 6 | Deposits at the mouth of a river |
| 39% | DELTA | 5 | Deposit at the mouth of a river |
| 38% | EBOLA | 5 | Virus named for a river |
| 38% | RIA | 3 | Narrow inlet of a river |
| 38% | SWINGBRIDGE | 11 | Pivoting span on a river |
| 38% | BRIDGE | 6 | Structure for crossing a river |