I have put together a composite map of Boulder Bike Path here. It will open a map in Google maps that by default shows many of the main Boulder bike paths. On the left hand side of the map you will see various layers (eg., Flooding Potential, Graffiti, Interesting Sites/Sights). By default those are invisible to keep map clutter to a minimum. But you can easily turn those layers visible or invisible by clicking on the little boxes to the left of their names.
The nice thing about this map is that it is dynamic (technically, it makes use of KML network link functionality). That means that if I add a new feature to the Flooding Potential My Maps map, then it will automatically be added to the composite map the next time a viewer refreshes the composite map.
Keep coming back (or subscribe to the RSS feed) to see what new information I have added.