"2.14969e+06"^^ . "50653" . . "641" . "Marble Rock, Iowa"@en . "2.25329e+06"^^ . "100000.0"^^ . . "305.105"^^ . . "-5" . "142.819"^^ . "-6" . "103600.0"^^ . . "305.0"^^ . "307"^^ . . "142.8"^^ . "2.15e+06"^^ . . "Marble Rock is a city in Floyd County, Iowa, United States, along the Shell Rock River. The population was 307 at the 2010 census. On July 24, 2014, Marble Rock will host 10,000+ RAGBRAI riders with ribs, chicken, pie, a beer garden and music from the Chocolate Crackers. Information for RAGBRAI riders is noted below.[1] You can also find photos of MarbleRockIA on Facebook, including the large and shady City Park, the historical museums, the powerhouse on the river, and the veterans' memorial."@en . . "2.25e+06"^^ . "Bike to Marble Rock for a 'Marbleous' Time!" .