EntityQ2225459· pop 9· linked from 296 articlesThe LoopSign in to savecircuit of elevated rail that forms the hub of the Chicago 'L' system in the United StatesConnectionsChicago "L"EntityHarold Washington Library – State/Van Buren stationEntityLaSalle/Van BurenEntityelevated railwayEntityRed LineEntityPink LineEntityClark/LakeEntityQuincyEntityAdams/WabashEntityState/LakeEntityWashington/WellsEntityMadison/WabashEntityRandolph/WabashEntityUnited StatesCountryChicagoEntityIllinoisEntitygeographic coordinate systemEntityInternational Standard Book NumberEntityrapid transitEntityvoltEntityCategoriesChicago "L" infrastructureChicago Transit AuthorityHistoric American Engineering Record in ChicagoRailway lines opened in 1895Railway loop lines