Geological survey (Etats-Unis)2024-08-262024-10-152024-08-262024-10-15195030002008806663https://hdl.handle.net/11285/696110Escala 1: 24,000 proyección Polyconica1 mapaengopenAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0Gaveta 3G4100.G46 1950Illinois-Mapas topográficosSpring Bay Quadrangle, Illinois: 7.5 minute series (topographic)mapped, edited and published by the Geological SurveyImagenTIFF, PDFb12579129i35379935IllinoisTopografíaHidrologíaPlanoCampus Norte68 x 55 cm.