Locke Island

Locke Island
The southern tip of Locke Island seen from the White Bluffs
Locke Island
Locke Island in Washington
Geography
LocationColumbia River, Hanford Reach National Monument, Washington
Coordinates46°42′19″N 119°28′03″W / 46.70528°N 119.46750°W / 46.70528; -119.46750
Highest elevation397 ft (121 m)
Administration
United States
StateWashington
CountyGrant County

Locke Island is an island located in the Hanford Reach of the Columbia River in Washington, United States. The island is protected as part of the Hanford Reach National Monument, which was created out of lands surrounding the Hanford Site. The island is an important archeological site and is on the National Register of Historic Places. These cultural resources are being threatened by erosion resulting from a landslide changing the river's course.