Here is the icon I came up with for your marathon/races. It is a hybrid of the shape of Utah and a snow-capped mountain peak. I kept it simple and flat so that it will ensure clean and crisp embroidery, as requested. I also kept it to a 2-color design (3 counting white), to keep production fast and affordable.
Let me know if you would like to see any specific color options or a more detailed version for web/print, and I will be happy to provide whatever you need. Thanks for your time!
(This comment references Entry #53)