(mm 2240.9) If you were to go exactly east of here, 3.8 miles and another 6,169' to the peak, you would encounter the remains of the highest fire lookout in Washington State. But unless its early September you might have to dig down to find it.
At 12,276′ the Mount Adams lookout is the highest lookout ever built in the state of Washington. (The 2nd highest is Slate Peak which is adjacent to the PCT).
The Forest Service first began moving materials to the summit of Adams in 1917 with the plan to construct a fire lookout. This was certainly one of the tougher lookouts to reach in the United States. In fact, it took nearly four years to successfully haul all the materials to the summit. Mules were used to carry supplies as far as Crescent Glacier, roughly 3,000-4,000′ below the summit, then Forest Service crews used ropes and sleds to pull materials the rest of the way.
The lookout was finally completed in 1922, though only remained in service only a short time between 1921 to 1924 before being retired in 1925. Not surprisingly, lookouts had issues with visibility thanks to blinding snow storms and cloud cover.
In 1932, miners began extracting sulfur from a summit vent on Adams and while living in the cupola, they added a rustic shack and lean-to, which remain today.
The structure spends much of its time entombed in deep snow and ice, only visible for a few weeks in late summer or early fall during dry years.
Source: TrailChick.com