The in-the-round turret shape of Dee Wright Observatory provides visitors with a number of portals to view the sights for 360 degrees. Using Yapoah Crater lava, Company 927 of Civilian Conservation Corps Camp F-23 built the Observatory in 1933. Located at nearly in the center of the High Cascades volcanic chain, which extends from Lassen Peak in California to Mt Baker in Washington, visitors have been visiting Dee Wright Observatory since it opened in 1934.