Centerlines: Federal Railroad Administration (FRA) public rail network data, compiled for MINA (NCRR shown as the NS-operated H Line, A&EC District and the Charlotte–Greensboro main line). Mileposts: FRA public milepost data for all railroads shown (NS, CSX, CN, G&W, BNSF, UPRR, CPKC and NCRR), including FRA NTAD Rail Mileposts. Loaded live: FRA/BTS NTAD Railroad Bridges and Grade Crossing Inventory (with published mileposts); USGS NHD and Water Services; NOAA NWS river gauges (NWPS), alerts and NHC; Iowa Environmental Mesonet radar and MRMS; USDA NRCS SSURGO; FEMA National Flood Hazard Layer (NFHL); USGS The National Map; Esri. Subsurface: Macrostrat geologic map (compiled USGS and state geologic maps, CC-BY 4.0); USGS 3DEP ground elevations (Elevation Point Query Service); USGS NWIS groundwater wells (national); state well-log and bedrock-depth databases for Ohio (ODNR), Indiana (IDNR), Illinois (ISGS), Minnesota (CWI), Missouri (DNR), Pennsylvania (PaGWIS), Virginia (DGMR), Kentucky (KGS) and Wisconsin (WGNHS); bedrock maps: ODNR drift-thickness raster, ISGS drift-thickness map, Missouri DNR depth-to-bedrock contours; USDA SSURGO for bedrock within the soil profile. Bedrock depth is interpolated from these (map trend adjusted by nearby well logs). State DOT networks: FHWA National Highway System and National Bridge Inventory (USDOT BTS NTAD), with FRA grade crossings by state. Not for operational dispatch decisions.