The Double Diamond Dude Ranch Dining Hall was built in 1945 as the centerpiece of a dude ranch operated by Frank Williams and Joseph S. Clark, Jr. in Grand Teton National Park. The ranch was opened in 1924 with a dozen tent cabins and log buildings for a kitchen and dining hall, lounge and commissary. In 1943 Williams built log tourist cabins, followed by the larger dining hall in 1945. The 1985 Taggart Lake Fire destroyed much of the ranch, sparing only the dining hall and five cabins. The dining hall is listed on the National Register of Historic Places as an example of rustic architecture. Since 1970 the Double Diamond property has been a hostel for mountain climbers in the Teton Range, and is known as the Climbers' Ranch.