I have had some free time the past couple of weeks because I've finished classes but have yet to start work, so I decided to spend some time mapping Detroit's streetcar lines on google maps. Anyways, I thought I'd post it here because it seems like a lot of you guys are big transit enthusiast.

http://maps.google.com/maps/ms?hl=en...,0.617294&z=11

The map has all twenty major lines from the start of WWII. However, it is not perfect because its hard to tell exactly where the private right-of-ways are located.