Blockhouse is an unincorporated community in Klickitat County, in the U.S. state of Washington.
[1] Blockhouse had its start in the 1850s when a military fort was built near the town site.
[2] and was used during the Yakima War.
A post office called Blockhouse was established in 1872, and remained in operation until 1930.
This Klickitat County, Washington state location article is a stub.