Set across 240 acres of wilderness in Big Sky, Montana, One&Only Moonlight Basin is an alpine retreat surrounded by forests, mountain peaks and two private lakes, with Yellowstone National Park just an hour away. One&Only’s first alpine resort in the US, it combines contemporary mountain living with an extraordinary setting designed for year-round adventure.
The Hotel
Accommodation ranges from spacious rooms and suites to secluded cabins and four- to six-bedroom Private Homes, all designed to make the most of the surrounding landscape. Natural wood, stone and warm textiles reflect Montana’s mountain heritage, while floor-to-ceiling windows, fireplaces, soaking tubs and private outdoor spaces create a comfortable base for time spent in the wilderness.
Amenities
Adventure is at the heart of Moonlight Basin, with 15 miles of private trails for hiking and biking, alongside fly-fishing, horseback riding, kayaking and wild swimming during the warmer months. Winter brings skiing and snowboarding, while year-round excursions venture into the Greater Yellowstone Ecosystem, with opportunities to encounter the region’s remarkable wildlife. An onsite observatory also offers guided stargazing beneath Montana’s famously clear skies.
Wellness is centred around the expansive One&Only Spa, a 17,000-square-foot retreat with treatment rooms, sauna and steam facilities, indoor and outdoor pools, hot and cold therapies, and a fitness centre. Dining spans Japanese-inspired cuisine at Akira Back, all-day Montana fare at Wildwood, drinks in the cosy lounge of Dear Josephine and elevated alpine dining at The Landing, while KidsOnly introduces younger guests to the landscape through nature-focused activities.
Open since November 2025, One&Only Moonlight Basin offers a rare combination of refined luxury and genuine wilderness, with each season bringing a different way to experience Montana’s dramatic landscapes.









