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Rock Island to Galena Ditch

 3.7 (9)
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21.9 Miles 35.3 Kilometers



2,432' 741 m


-2,429' -740 m



Avg Grade (2°)


Max Grade (13°)

10,782' 3,286 m


9,482' 2,890 m



Bad / Closed 96 days ago

Getting forecast...

Expert loop from Breckenridge through Golden Horseshoe to Galena Ditch Trail and back.


Dogs Leashed

Features -none-


This is a loop ride from downtown Breckenridge through the Golden Horseshoe to Galena Ditch Trail and back to town. An opportunity to connect the trail network in French Gulch with the trails along Tiger Road.


The loop utilizes the following trails and roads in this order: French Street, Columbia Lode, Gold Flake Terrace, Corkscrew, French Creek, Vista Point, Betty's Trail, Prospect Trail, Gold Run Road, Prospect Trail (again), Side Door, Backdoor, Prospect Hill Road (GH 38), Lincoln Park Road (GH 66), Rock Island Road (GH 87), Rock Island Trail, Galena Ditch Trail, Summit Gulch Road (GH 74), ZL Trail, Discovery Ridge, The Ledge Trail, Gold Run Rd (paved), Tom's Baby, Middle Flume Trail, Upper Flume Trail, Lower Flume Trail, Huron Road (SCR 450), Blue River Bikeway.

Need to Know

All the trails from the top of Side Door to Rock Island Trail are open to motorized use.
Rock Island Trail is loose, steep and rocky. This is an expert descent.

Prospect Hill Road and Lincoln Park Road have been graded for logging operations, and logging will be ongoing for the next several years in the Golden Horseshoe area.

The recent extension of Galena Ditch Trail to South Fork Road (FR 355.1B) permits a slightly longer version of this loop: continue up Lincoln Park Road approximately 1 1/2 miles past Rock Island Road to American Gulch Road. Descend American Gulch Road to South Fork Road. Turn left and descend to the bottom of the road and the eastern end of Galena Ditch Trail on the left side of the road. Ride Galena Ditch Trail westward to Rock Island Trail, continuing on Galena Ditch Trail, and following the remaining description. This adds only a few miles of length, but a longer descent and the eastern end of Galena Ditch Trail is fantastic!


From the intersection of Main and French Streets, go east on French and look for the Columbia Lode Trail marker post on the left side of French Street. Climb Columbia Lode to Gold Flake Terrace, a paved road. Following pavement markings go left and look for a post for the Corkscrew Trail in a driveway on the left.

Follow Corkscrew, bear right at the first intersection, then descend left after 1/4 mile across Corkscrew Drive to French Creek trail, a crusher fines path. Bear right into an asphalt parking lot, following the striped bike lane around to the right back to the crusher fines path. Follow French Creek Trail until it crosses a ped/bike bridge. Bear left at the next intersection with Vista Point and ride north to French Gulch Road. Cross French Gulch and begin up Betty's Trail on the north side of the road.

Betty's Trail switches back a few times before traversing east, up valley. Ride Betty's until it descends, and parallels French Gulch Road near the Wellington Neighborhood. Betty's ends at Gold Run Road. Take the singletrack on the left just before the road, and left again after a short distance. This singletrack switches back and reconnects with Gold Run Road after a short distance. Go left on Gold Run Road, and take the first right on Prospect Trail. Climb all the way to Side Door, passing a house and garage enroute.

Go right onto Side Door, and left onto Backdoor just west of a tailings overlook. Climb to the top of Backdoor. Turn right onto Prospect Hill Road. Descend, passing right at the first road intersection with Golden Gate Loop (GH 39) to Lincoln Park Road (GH 66) in Lincoln Meadow. In the meadow pass Rich Gulch (GH 62) on the right just before Lincoln Park Road (GH 66).

Climb 1/4 mile and turn left onto Rock Island Road (GH87). Rock Island has a couple of boggy spots in the deep forest before beginning a ripping descent. Be cautious of the large drainage dips at high speed. 1.8 miles into Rock Island Road descent there is a three-way junction with a timber barricade marking the beginning of Rock Island Trail. Go east through the barricade onto Rock Island Trail.

The trail is very steep and loose to Galena Ditch Trail. The junction with Galena Ditch Trail is near the bottom of Rock Island Trail at a post marker. Turn left onto Galena Ditch Trail and ride west crossing several roads. Galena is pretty easy to follow.

At the end of the trail, take a left onto Summit Gulch Road and climb steeply 1/3 mile to ZL Trail which begins at a timber chicane on the left side of the road. The singletrack ZL Trail climbs steadily to a high point above a house, descends back to Galena Gulch passing through a set of timber barriers, climbs a final time crossing gravel Rac-Jac Way enroute. After crossing the road and contouring below a power line in a clear-cut, ZL Trail descends through a series of features back to a ditch trail. Follow the ditch southwest across a paved road then descend to Discovery Ridge trail.

Go left and descend Discovery Ridge to a gravel road, The Ledge Trail. Go right and then left at a post marker, descending to paved Gold Run Road. Go left on the pavement and follow this around to Tom's Baby trail at the end of the road on the right. Climb Tom's Baby to the Middle Flume Trail. Go left on Middle Flume Trail and climb to the Upper Flume Trail. Go right on Upper Flume Trail, passing Slalom on the left and continue all the way to the Lower Flume Trail. Go left and descend to SCR 450, Huron Road. The GPS description ends here. Go right back to town.

Alternatively, from the bottom of Discovery Ridge, turn left onto The Ledge, climb to Gold Run Road, then climb to Upper Flume Trail, Little Corporal, or Slalom.


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Aug 4, 2018
Heath Bowden
May 18, 2018
Clifford Ewing
Jul 20, 2017
caleb fairly
Sep 11, 2016
David Simmons
Sep 6, 2015
Patrick Heyboer
Sep 1, 2014
Kirby Longo
Confusing 18mi

Trail Ratings

  3.7 from 9 votes


in Breckenridge


  3.7 from 9 votes
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in Colorado


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Adde Sharp
Breckenridge, CO
Adde Sharp   Breckenridge, CO
Posting here to fully refute two of the comments posted regarding this ride. This is a great cross country mountain bike ride! It does a great job of linking up single track, roads and more single track to provide a very cool over the mountain and back again experience. The ascents are pretty manageable and mostly follow purpose built mountain bike trails that have appropriate grades for climbing. As for the decent, the comment below about the straight down on "baby heads" must have been posted by a person who appreciates a flowy bike park where someone comes around before you with a hand broom and dust pan to prepare your way. It's a "Mountain" bike ride - it goes through some rugged but very pretty country. The decent on the "ZL" trail is a full on blast! Enjoy! Aug 19, 2018
Mark Gehrke
Denver, CO
Mark Gehrke   Denver, CO
For the love of God, why would you ride side door uphill!? This is one of the best downhill roller coaster trails...until you come across the poor sap who followed MTB Projects suggestion of riding it in the uphill direction and have to stop for him. MTB Project, please show the arrows for Side Door in the downhill direction. Thanks Sep 10, 2018
D L  
I wanted to add a bit of personal perspective to this and address some of the other comments on the trail: the good, the bad and the ugly. Firstly, THANKS! I definitely appreciate all the feedback. I agree with all of these comments: "why climb Side Door", "trail has no flow", "fall-line babyheads", it's all 100% true...and not true. This route was pioneered for one purpose: get from my house in French Gulch to the Colorado Trail while minimizing time spent on Tiger Road. A fete only accomplished over Discovery Ridge (too much road), Traylor Way or Heinous Hill (ouch), Summit Gulch Road (believe me Rock Island is much better), or American Gulch Road (sick, but an hour longer). There is a reason the overview is in all caps, this ride IS NOT FOR EVERYONE. When I first began riding this route, Side Door was nothing like the present, sweet, suite of features it is today. Like Rock Island Road, it was a steep, gritty, loose, babyhead anaerobic sufferfest! It is not yet a downhill only trail, but will be recommended so when the Town completes the bypass soon, at which time this description will change. The men and women I ride with locally are equally split, half I would never take down Rock Island, and the others (like me) enjoy the ripping downhill (rolling waterbar-gaps at 35 mph -schwing!). The real gems on this route (for me at least) come in second half of the loop. Like the Side Door reroute, Galena Ditch and ZL are newly built, and are a blast, and finishing on one of the flume trails is pretty dang fun too. Side Door down is an absolute must if you're riding in Breck. Just climb Yellow Brick, Prospect Road, Heinous Hill, One Step Over, or the soon to be completed Side Door bypass to access the trail - but there are no easy routes to the top! The top of Side Door is a 1 hour minimum climb, so suck it up, buttercups and get some! Happy trails! Sep 10, 2018

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