The exterior shots were made at the Timberline Lodge on Mt. Hood in Oregon. Interiors and the rear of the hotel were built in London at Elstree Studios.
The Timberline Lodge located in Oregon was used as the exterior of the hotel. The back of the hotel and all interior shots were filmed at Elstree Studios in London.
The front exterior of the hotel is the Timberline Lodge on Mt. Hood in Oregon. The interiors and the back of the hotel were specially built at Elstree Studios in London, England.