The Great Divide Mountain Bike Route is without a doubt one of the preeminent off road touring routes in the US/Canada. Now that I’ve ridden the route essentially twice and have done some extensive touring within Colorado, I can’t help but think how one could enhance it.
Personally, I enjoyed my time more when the route stuck close to the actual Continental Divide, rather than opting to drop down into a relatively easy going valley or basin to gain some mileage towards the end goal (finishing!). I always greatly anticipated gaining the summit of the passes, then rocketing down. Knowing Colorado a little more intimately now, it’s a shame how much of Colorado is missed with the relatively easy path the GDMBR takes.
The GDMBR has many goals, and one of the most important one is to get a heavily laden bicycle and rider (cyclists on a mountain bike, pulling a trailer) eventually to the end of the route. If the route is too long, too hard, and/or with too many Divide crossings, it’s just never going to realistically happen for a good majority of people. If we throw these constraints out of the window, and focus on the goal of staying as close to the Divide as possible, while also keeping the route terrain somewhat similar: gravel roads to 4×4 trails, we start drawing out something a little different.
Below, I’ll be describing a route that takes you off the official GDMBR just before Ute Pass, and rather takes you up and over the Continental Divide at Rollins Pass, parallels the James Peak Wilderness as you travel south to Idaho Springs, then brings you back west to go up and over the Continental Divide again at Argentine Pass, finally depositing you once again onto the official GDMBR in summit county. It circuitous and it’s a whole lot of fun .
Ah, a good nice long ride in the Colorado Front Range foothills. If you’re like me, you like your rides to be challenging and engaging – as well as avoiding perils, such as traffic. A ride from Boulder to Idaho Springs (and beyond!) should be an easy target to hit. Idaho Springs makes a good resupply point, if you’re hoping to go further into the mountains, as there’s a good bike route from the Springs that you can take up and over Loveland Pass and onto the other side of the Continental Divide.
Unfortunately, between Boulder and Idaho Springs are the old mining townsites of Black Hawk and Central City, which now are home to gambling towns. Black Hawk seems to have quite an aversion to cycling in general, going so far as banning it outright in town. The reason? Traffic from people coming into town to gamble – one of the only reasons one would come to Black Hawk and stay for any extended period of time. No gambling, no Black Hawk. This ban was overturned by the Colorado Supreme Court, but Black Hawk has made it uncomfortable for cyclists to go through town, as they’ve made an out of the way detour that bicycles need to follow – you can’t use the main street, that goes right to Central City! Thus, cycling is still banned in most of Black Hawk.
I don’t necessarily like going through Black Hawk/Central City. You lose and gain a tremendous amount of elevation to essentially ride through the middle of a high-traffic area (ie:no payoff!)- an area that doesn’t even like you being there. But, if you don’t mind some gravel and a more adventurous route, there are alternatives:
Although it took me a little while to warm up to the idea of using a GPS, once I got one, I found them almost indispensable. This walkthrough is my basic workflow on getting a .gpx file into my eTrex 20.