The Inn has been expanded and modified several times. In 1913 the East Wing was added to the 120-room original structure, and in 1922 the dining room was enlarged. In 1927-1928 the West Wing was built, and the front of the main building extended. All of these modifications were carried out under the supervision of the original architect, Robert Reamer. A 1927 addition to the dining room has since become home to the Bear Pit Lounge. Installed in 1936 just off the lobby, the first Bear Pit featured carved and inlaid wood panels with humorous scenes involving bears, created at Reamer's suggestion. When the lounge was converted to a coffee shop, the lounge was relocated to the dining room extension and the panels were replicated in etched glass in 1988. Some of the original panels remain in the snack bar. In 1940 the interior logs were peeled, revealing patterns created by bark beetles, and in 1966 the logs were cleaned and varnished. An automatic fire sprinkler system was added in 1948, together with fire doors in the wings.