Posted by Kurt Maechner on URL: http://c-sng-discussion-forum.254.s1.nabble.com/Alpine-Tunnel-Insider-from-one-who-modeled-it-tp18328.html
George Sebastian-Coleman modeled the Alpine Tunnel and surrounding DSP&P territory in On3 and I came up a video forum he hosted. In the video he not only talks modeling but also shares lots of insights gathered from his research on the tunnel and the surrounding area. A visit to George's Youtube channel will show you several videos of his layout.