This was the original heart of the fort. The battery consisted of three 8-inch disappearing guns that could pop-up, fire and drop back down into their gun pits. The guns are long gone. I assumed they were removed when the fort was decommissioned. To my surprise, these guns and 77 other 8-inch coastal defense guns from around the country were removed during WWI for possible use as railway guns on the Western Front in France. Three of the 80 actually made it to France.
The wooden building, on the left, is the guardhouse. The headland, in the distance to the right of the frame, is the location of the Cape Disappointment Lighthouse (Southern). The view here is the side opposite this view.
It seems that little happened at the fort until WWII.
Fort Columbia State Park