| Blue Mountain House Annex | |
| Location: | NY 30, Blue Mountain Lake, New York |
| Coordinates: | 43.8553°N -74.4339°W |
| Built: | 1876 |
| Architect: | Merwin, M. Tyler |
| Architecture: | Log building |
| Added: | December 7, 1977 |
| Area: | less than one acre |
| Refnum: | 77000941 |
Blue Mountain House Annex, also known as The Log Hotel, is a historic hotel located on the grounds of the Adirondack Museum at Blue Mountain Lake in Hamilton County, New York, USA. It was built in 1876 and is a two-story structure built of square-hewn spruce logs with halved log cornering. It features a verandah on the south and east. It is one of the earliest and best known of the Adirondack resort hotels.[1]
It was added to the National Register of Historic Places in 1977.