From the record
“The Wickahoney Post Office and Stage Station is an abandoned post office and stagecoach station which served the community of Wickahoney, Idaho. The building was built with lava rock and featured a wooden porch and a shingled roof with seven gables.”
Wikipedia article Wickahoney Post Office and Stage Station, CC BY-SA 4.0.
One of 11 National Register listings published here for Owyhee County · listed in 1982 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service