What we want to do is get together a massive collection all over the midwest (WI, Ill, Minn, etc) but we need everyones help. I've asked a few people to help out but we need a lot more rails before we can release it. This will be a public map, where everyone can see it so we are asking that everyone who would potentially use it contribute. Ask your buddies where there spots if you don't know any. Tell them in return they are getting a wealth of info. I know a lot of people are pretty protective with their urban knowledge, but I think a huge resource of spots will be better then just knowing a few yourself.
What I would need from you would be a picture of the rail, and the exact location of where it is. Go to http://maps.google.com/, zoom into the exact spot of the rail, right click and select "what's here" , from there copy down the two latitude and longitude numbers that comes up, and send me those two numbers along with the picture of the rail.
Here are some pictures of what is coming along so far, but I'm waiting until I get a lot more rails until I release it, so please help out if you can