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. [3]
45°50′22″N 120°56′15″W / 45.83944°N 120.93750°W