G GA - Georgia Railroad, Seaboard System Railroad, CSX Transportation GAAB - South Carolina Central Railroad (Georgia and Alabama Division) GABX - General American Marks Company GACX - General American Marks Company, GATX Corporation GAEX - General American Marks Company GAFX - Fuller Company GALX - Georgia Power Company GAMX - General American de Mexico, Arrendadora Nacional De Carros De Ferrocaril GANO - Georgia Northern Railway GAOX - General American Transportation Corporation GAPX - Georgia-Pacific Corporation (Plaquemine Division), Georgia Gulf Corporation GARX - General American Transportation Corporation, GATX de Mexico, SA de CV GASC - Georgia, Ashburn, Sylvester & Camilla Railroad GASX - General American Marks Company GATU - Gateway Container Leasing GATX - General American Marks Company, GATX Corporation GAUX - General American Transportation Corporation GAYX - General American Transportation Corporation GBRX - Greenbrier Leasing Corporation GBRY - Gettysburg Railway GBRZ - Greenbrier Leasing Corporation GBW - Green Bay and Western Railroad; Fox Valley and Western Railroad; Wisconsin Central Railway; Canadian National Railway GBWX - Gerber Products Company; Sandoz; Novartis GC - Georgia Central Railway GCAU - GCA Transport GCCX - General American Marks Company GCDU - Overseas Container GCEU - Genstar Container Corporation GCEZ - Genstar Container Corporation GCFX - Alstom Canada Transport GCGX - Gulf Coast Grain GCIX - Gabriel Chemicals GCLX - Gold Coast Limited GCLZ - Global Chassis Leasing GCMX - National Railway Historical Society (Gold Coast Chapter) GCOX - Gold Coast Railroad Museum GCPU - Genstar (Burlington Northern and Santa Fe Railway; BNSF Railway) GCPX - Georgia Gulf Corporation (PVC Division) GCRX - Grand Canyon Railway GCSF - Gulf, Colorado and Santa Fe Railway GCSR - Gulf, Colorado and San Saba Railway GCSU - G.C.S. Containers Service, SA GCTU - Gulf Container Lines GCTX - General Chemical Corporation GCW - Garden City Western Railway GCX - Alltank Equipment Corporation, Honeywell GDCX - General American Marks Company GDJX - Grimmel Industries GDLK - Grand Elk Railroad GEAX - Trinity Rail Management GECX - GE Transportation GECZ - GE Capital Container Finance Corporation GEGX - GE Gas Turbine GELX - Garvey Elevators, Grain Marketing GEMX - GE Rail Services GENX - GE Rail Services GEOX - GEO Specialty Chemicals GEPX - Trinity Rail Management GETX - Getty Refining and Marketing Company, General American Marks Company GETY - Gettysburg Railroad (1976-1996) GETZ - Transport International Pool GEX - General Electric Company GEXR - Goderich-Exeter Railway (RailAmerica) GF - Central of Georgia Railroad, Norfolk Southern GFAX - Gordon Fay Associates GFC - Grand Falls Central Railway GFCX - Glens Falls Lehigh Cement Company GFCZ - General Foods Corporation GFHX - Commercial Credit Capital Corporation GFJX - Garret Railroad Car & Equipment GFLX - Greenfield Logistics GFR - Grand Forks Railway GFRR - Georgia & Florida Railroad GFSX - General American Marks Company GGCX - Georgia Gulf Corporation (Plaquemine Division) GGIX - Garvey International (Garvey Grain Division) GGMX - Golden Gate Railroad Museum GGPX - General American Marks Company GGS - South Carolina Central Railroad (Georgia Great Southern Division) GHBX - G. Heileman Brewing Company GHH - Galveston, Houston and Henderson Railroad GHRD - Green Hills Rural Development (Chillicothe-Brunswick Rail Maintenance Authority) GHRX - GHR Energy Corporation GIEX - General American Marks Company GIHX - Gifford-Hill & Company (Cornerstone C & M Incorporated); Hanson GILX - Gilman Paper Company GIMX - General American Marks Company GITM - Golden Isles Terminal Railroad GJ - Greenwich and Johnsonville Railway GJR - Guelph Junction Railway GKLX - Gold Kist GLBZ - Trac Lease GLC - Great Lakes Central Railroad GLCU - Flex-Van Leasing GLCX - Great Lakes Carbon GLKU - Great Lakes Chemical Corporation GLKX - Great Lakes Chemical Corporation GLLX - Great Lakes Locomotive Leasing GLNX - GLNX Corporation GLRX - Georgetown Loop Railroad GLSR - Gloster Southern Railroad GLSX - Glacier State Distribution Services GMCX - General Motors Corporation GMDX - General Motors Diesel Canada GMGX - M and G Polymers USA GMHX - General American Marks Company GMTX - General American Marks Company GMIX - Chicago Freight Car Leasing Company GMO - Gulf, Mobile and Ohio Railroad, Illinois Central Gulf Railroad, Illinois Central, Canadian National Railway GMRC - Green Mountain Railroad GMRY - Great Miami and Scioto Railway GMSR - Kansas City Southern Railway GN - Great Northern Railway, Burlington Northern Railroad, Burlington Northern and Santa Fe Railway; BNSF Railway GNA - Graysonia, Nashville and Ashdown Railroad, Kansas City Southern Railway GNAX - Holnam GNBC - Grainbelt Corporation, Farmrail GNCU - Gallatin National Company GNFX - Gainesville, Florida (City of) GNLX - Georgia Industrial Leasing Company GNRR - Georgia Northeastern Railroad GNTX - Railgon Company, TTX Corporation GNWR - Genesee and Wyoming Railroad GOCU - Greenfield Overseas Container GOCX - Gulf Oil Products Company, Chevron Phillips Chemical Company GOHX - General American Marks Company GONX - Railgon Company, TTX Corporation GOT - Greater Toronto Transit Authority GOTU - Gulf Overseas Towing GPBX - Georgia-Pacific Corporation GPCX - General Electric Company (General Purpose Control Department), Georgia-Pacific Corporation GPDX - General American Marks Company GPEX - General American Transportation Corporation GPFX - General American Marks Company, GATX Corporation GPIX - General Portland, Sunbelt Cement GPLU - Management Control and Maintenance GPLX - General American Marks Company GPMX - Georgia-Pacific Corporation (Mid Continent Wood Products Manufacturing Division) GPPX - Georgia-Pacific Corporation (Portland Division) GPSX - Georgia-Pacific Corporation (Eastern Wood Products Manufacturing Division) GPUX - GPU Service Corporation GR - Grand Rapids Eastern Railroad GRCX - Granite Rock Company (Graniterock) GRDX - Grand River Dam Authority GREX - Georgetown Rail Equipment Company GRFF - Georgia and Florida Railroad GRIV - Gauley River Railroad GRLW - Greenville & Western Railway Company (Western Carolina Railway Service Corporation) GRMX - Gopher State Railway Museum GRN - Greenville and Northern Railway (retired mark, line now abandoned) GRNR - Grand River Railway GRNW - Great Northwest Railroad GROI - Genesee Rail-One GROX - Growth Nonstop Cooperative, First Union Rail GRPX - General Chemical, CIT Financial GRR - Georgetown Railroad GRRX - Wampum Hardware GRRY - Grand River Railway GRSX - Gunderson Rail Services GRTX - Savage-Tolk Energy Services GRWR - Great Walton Railroad GRYR - Grenada Railway GRYX - John H. Grace Company, Transmatrix GSAX - Granite State Concrete Company GSCU - Eurotainer US GSCX - Greenville Leasing Company, General American Marks Company GSF - Georgia Southern and Florida Railway GSI - Gulf and Ship Island Railroad GSIX - Gas Supply, Williams Energy Ventures GSLX - George R Silcott Railway Equipment GSM - Great Smoky Mountains Railroad GSNX - Gulf States Utilities Company, Helm Financial Corporation GSOR - Indiana Hi-Rail Corporation GSPX - Great Southern Plywood Company GSRX - Golden Spike Railroad Services GSSX - Gopher State Scrap and Metal GSTU - Genstar Container Corporation GSUX - Girl Scouts USA GSW - Great Southwest Railroad GSWR - South Carolina Central Railroad (Georgia Southwestern Division) GSWX - G and S Company GT - Grand Trunk Railway GTA - Grand Trunk Western, Canadian National Railway GTAX - Harvest States Cooperative GTC - Gulf Transport GTEU - General Transport Equipment Company GTER - Grafton Terminal Railroad GTIS - Guilford Transportation Industries GTIZ - G. T. Intermodal USA GTLZ - G. T. Leasing GTP - Grand Trunk Pacific Railway (expired) GTPR - Grand Trunk Pacific Railway GTPZ - TIT Services GTR - Great River Railroad (Rosedale-Bolivar County Port Commission) GTRA - Golden Triangle Railroad GTTX - Trailer Train Company, TTX Company GTW - Grand Trunk Western, Canadian National Railway GTWQ - Grand Trunk Western, Canadian National Railway GTZZ - GT Trucking GU - Grafton and Upton Railroad GUAX - Georgia Power Company GUEX - General American Marks Company GURZ - Grafton and Upton Railroad GVCX - Glen-Valley Corporation GVDX - Oxy Vinyls GVSR - Galveston Railroad GWAX - Railroad Salvage and Restoration GWCX - Greenway Centre GWER - Gateway Eastern Railway; Kansas City Southern Railway GWF - Galveston Wharves GWHX - Stevens Energy GWIX - GWI Leasing Corporation GWR - Great Western Railway of Colorado GWRC - Georgia Woodlands Railroad GWRS - Great Western Railway (Saskatchewan) GWSR - Great Western Railway (Saskatchewan) GWSW - GWI Switching Services, LP GWWD - Greater Winnipeg Water District GWWE - Gateway Eastern Railway GWAG - Greenwood And Grizzly RailRoad GWWR - Gateway Western Railway GYLX - Gaylord Container Corporation