This sprawling modern hotel on the east side of Lewistown takes its name from the Yogo sapphires mined nearby. Rooms are contemporary, spacious, and well furnished; some have four-poster beds. Many rooms face an indoor courtyard with a swimming pool and hot tub. The hotel and convention center is built around the Centermark Courtyard, which takes its name from surveyor documents buried here in 1912: they proclaimed the spot the geographical center of Montana. You can arrange for Western buggy and sleigh rides and guided tours of nearby ghost towns and Native American petroglyphs.