A few years ago, I found a link to an article by Gordon Chappell about the engines salvaged out of the rip-rap at Skagway that was published by the the National Park Service.I just realized the complete issue of Culutrual Resource Management from late 1999 was devoted to railroads. The issue was subtitled "Historic Railroads: A Living Legacy." There are a total of 22 articles and they are available on line in pdf format.See this link: Historic Railroads: A Living LegacyEnjoy!