What is this?
Denver's Regional Transportation District is among the largest transit agencies in the US with no official system overview map. Their website provides one of those GIS maps whose utility is limited to showing where buses may appear at least once a week — no distinction between routes, no indication of service span or quality. In addition to this gap in passenger information material, Denver's moderate size and regular street grid made it an attractive canvas for my first attempt at bus system map design.
Future versions of this map may include landmarks such as parks, hospitals, postsecondary institutions, shopping centres, and the Platte River. I may also create maps of Boulder or the regional bus network, but no promises made.
Also, I made this for free, and it is intended strictly for personal use. RTD can contact me if they want to use this map or anything derived from it.