It is situated on the Arkansas River between the Osage Hills and the foothills of the Ozark Mountains in northeast Oklahoma, a region of the state known as Green Country. Considered the cultural and arts center of Oklahoma, Tulsa houses two art museums, full-time professional opera and ballet companies, and one of the nation's largest concentrations of art deco architecture. The city has been called one of America's most livable large cities by Partners for Livable Communities, Forbes, and Relocate America. FDi Magazine in 2009 ranked the city no. 8 in the U.S. for cities of the future. In 2012, Tulsa was ranked among the top 50 best cities in the United States by BusinessWeek. People from Tulsa are called Tulsans. As of July, 2020, the United States Supreme Court ruled in McGirt v. Oklahoma that eastern Oklahoma, including Tulsa, (nestled between the Creek and Cherokee tribes) is Native American land.