Grays River (Washington)

Grays River
Location of the mouth of Grays River in Washington
EtymologyRobert Gray
Location
CountryUnited States
StateWashington
CountyWahkiakum, Pacific
Physical characteristics
SourceWillapa Hills
 • coordinates46°28′57″N 123°23′46″W / 46.48250°N 123.39611°W / 46.48250; -123.39611
MouthGrays Bay (Washington State)
 • location
Columbia River
 • coordinates
46°18′10″N 123°41′18″W / 46.30278°N 123.68833°W / 46.30278; -123.68833
 • elevation
0 ft (0 m)
Length30 mi (48 km)
Basin size124 sq mi (320 km2)
Basin features
Geographic Names Information System1505254

Grays River is a tributary of the Columbia River, approximately 30 miles (48 km) long, in southwestern Washington in the United States. One of the last tributaries of the Columbia on the Washington side, it drains an area of low hills north of the mouth of the river.