Lonetree (also Lone Tree or Steele) is a ghost town in Chouteau County, Montana, United States.[2] Founded circa 1885,[1] it is located at 47°32′30″N110°17′03″W / 47.54167°N 110.28417°W / 47.54167; -110.28417 (47.5416396, -110.2840931), at an altitude of 3,123 feet (952 m).[2] For nearly thirty years Lonetree possessed a post office, which was opened under the name of Steele on March 9, 1888; its name was changed to Lonetree on May 15, 1914. It bore this name for less than a year before closing on March 31, 1915.[3]