Asociación Rosarina Amigos del Riel.
Museo Ferroviario de Ranchos
RAILWAYS IN PATAGONIA -- FERROCARRILES PATAGÓNICOS
RailServe.com: The Internet Railroad Directory - Over 9,000 rail-related links, search engine, free classified ads, BBS, Train Simulator Add-Ons, ICQ List, and more!
British Settlers in Argentina—studies in 19th and 20th century emigration,
Jeremy Howat's site replete with vital data from church records, etc.
The Scots in Argentina (including Argentine and Chilean Patagonia)
Arnold Morrison's site has a list of Scots Railwaymen employed in the Argentine.