| Lookout Summit | |
| Elevation Ft: | 3629 |
| Elevation Ref: | [1] [2] |
| Prominence Ft: | 1829 |
| Isolation Mi: | 12.94 |
| Location: | Benton County, Washington |
| Range: | Rattlesnake Hills |
| Coordinates: | 46.4476°N -119.84°W |
| Coordinates Ref: | [3] |
| Topo: | USGS Maiden Spring |
Lookout Summit—officially listed as "Lookout" in the Geographic Names Information System[3] —is the highest point in Benton County,[4] in the U.S. state of Washington. The mountain is also the highest point in the Rattlesnake Hills,[5] with an elevation higher than the neighboring, more-well-known Rattlesnake Mountain—which is the second highest peak in the range (as well as the county).[5]
