"160.934"^^ . "Mammoth Spring is a city in Fulton County, Arkansas, United States. The population was 977 at the 2010 census."@en . . "72554" . "3.62598e+06"^^ . "3.6e+06"^^ . . "977"^^ . "3.5e+06"^^ . "100000.0"^^ . "-6" . . . "Mammoth Spring, Arkansas"@en . . "161.0"^^ . "3.62598e+06"^^ . "0.0"^^ . "-5" . . "870" . . "316.333"^^ . "318.6"^^ .