Colorado National Monument Loop from Grand Junction
There is a small parking lot inside the Colorado National Monument East Entrance across from Serpents Trail. I recommend you park in the large parking lot near Trailhead Coffee and Van’s Car Wash just after you turn on Monument Road from Grand/Highway 340. It is about a four mile ride from there to the entrance. You must have a park pass or pay an entry fee for bicycles. Front and rear lights are required in the tunnels. The climb from the East Entrance is shorter and steeper than climbing from the West Entrance. You can do the full loop or I like to do an out and back on the Monument. Ride as far as you like! Good turn around points include Cold Shivers at about mile 4, the elevation sign about mile ?, Black Ridge at mile or the Visitors Centers. If you go all the way over to the West Entrance and back, it’s about 52 miles with over 5000 feet of climbing. There are a few places on Highway 340 where there is no shoulder; however, CDOT will be making improvements soon (click on below on ‘View full route’ for cue sheet).
Grand Junction/Canyon View Park to Fruita
There are many easy to navigate farm roads and you can do various versions of this route. You can leave and return to Canyon View Park by either 23 road or 24 1/2. I try to avoid 24 road and K as they tend to be busy. You can even go further west to Highline Lake. See Fruita Road Riding Maps for the Highline Lake route (click below on ‘View full route’ for cue sheet).
Little Park Road/Colorado National Monument Loop
I recommend parking in the large parking lot by Trailhead Coffee and Van’s Car Wash (click on ‘View full route’ for cue sheet).
Tour of the Valley
You can start this route anywhere. The official Community Hospital Foundation Tour of the Valley charity ride event starts and ends in Grand Junction at G and 23 road at Community Hospital. This is an amazing century ride showcasing all the amazing riding and views the Grand Valley has to offer. Click on the ToV link above to view their PDF maps for their 30, 50, 75 and 100 mile routes. The bike paths can be a bit tricky and the ToV maps are very helpful (click below on ‘View full route’ to see cue sheet).
Another source for maps similar to these and more, check out Grand Junction Area Road Cycling Maps website. These maps includes tips on where to find water, restrooms, and other tips.