Derek,
If you come south on I-25 exit Hampton and go west to Colorado.Turn left then turn right into the First Plymouth Congressional church parking lot and go to the back of the parking lot you will be facing Jefferson Ave. The paved trail goes along Jefferson to the gravel portion of High Line Canal.
When you get to the gravel turn left and you are on your way. .You will cross about 6 or so many streets over 19 miles but they have pedestrian signs to cross or there is very little car traffic and no problem crossing.It's a beautiful section to ride and not crowded..even on the weekends
Maybe we could meet for coffee out sometime or just ride.
Here's a map of the church parking and the trail.
Jon