We had a question this morning to clarify the  Loop 2 Addendum:

If you zoom out a bit, or pan the map to the northwest, you’ll see a pin. This corresponds to the start of the Wagon Wheel section, marked on your cues. The second pin marks the start of the Morris Creek singletrack.

If you’re not familiar with Google Maps, fiddle with it a bit and check out the map in different views. Satellite and “terrain” (under “more” in the map section) can be very helpful.