Bonnie Springs Ranch near Las Vegas is being sold to a developer, set to close in March. Bonnie Springs, west of Las Vegas off State Route 159 — next to Spring Mountain Ranch State Park — spans more than 60 acres and was on the market for $31 million. The developer and his project partner are under contract to buy the ranch and plan to chop it up mostly into custom-home lots. The plans includes a 25-room motel, a restaurant and a 5,400-square-foot event barn.