Coordinates: 47°49′39″N 117°16′18″W / 47.8273947°N 117.2716024°W
Green Bluff is a small unincorporated farming community and census-designated place in Spokane County in the U.S. state of Washington, and the name of a nearby cliff.
The 2010 census population was 761. The 2010 census was the first time the community has been recognized by the U.S. Census bureau. The town has a grange hall, church, fire station and general store and is known for equestrian properties as well as small farms.
Its elevation is 2,310 feet (700 m).
Long ago Native Americans burned away the underbrush on the bluff to give them better vision while they hunted game. A repercussion of this act was the growth of thick green grass around the evergreen trees, giving the area a park-like appearance. The bluff was given the name “Green Bluff” by early pioneers.
Peone Prairie, a valley to the south of the bluff was a gathering place for Native American tribes who frequented Green Bluff. Baptiste Peone was chief of the valley camp, and his wife and children were baptized by Ref. J.M. Cataldo in 1864. Cataldo became missionary for the Spokanees in 1867, and soon baptized every member of the camp.