The Roundhouse is a circular timber-and-stone restaurant perched at 7,700 feet on Bald Mountain, built in 1939 and the oldest on-mountain restaurant in the country. Skiers reach it at the top of the original Roundhouse Gondola; non-skiers can ride up too, which makes it one of the best lunch views in Idaho.
The menu is Swiss-Austrian inflected — fondue, raclette, wiener schnitzel, plus the usual upscale ski-area fare. The Glühwein on the deck after a cold morning is a classic Sun Valley moment. Reservations recommended in season.