These are the maps that show the disc golf service levels - how appealing an area is for a disc golfer.
The latest improvement is that I now take into account how busy each course is. This reduced the service levels quite a bit for areas that have a lot of courses, but also a lot of people to share them with, like Minneapolis and Chicago.
Here are a couple of examples. (San Diego and Highbridge, WI)
There are more in the slide show at http://stevewestdiscgolf.com/citygraphs.aspx