Great Salt Lake crossing An eastbound Union Pacific freight begins the long trek across Great Salt Lake at Lakeside, Utah. A wood trestle used to carry the line straight across directly in front of the train, but was later replaced with the fill that now zig-zags to the north. Promontory Peninsula and the Wasatch Mountains dominate the background, with Ogden located between them. For an interesting look at what happened to the trestle, check this out: http://www.trestlewood.com/page/1020/