9.3 miles
2,184 ft
-2,230 ft
1 mile
High Point

Welcome to the land of steep fire road climbs and rowdy, loose, sketchy singletrack descents. As the name suggests, Lefthand Off-Highway Vehicle area (LHOHV) started out as a motorized playground, but has been closed motorized use since the Flood of 2013. This ride is rated expert for very steep climbs and steep technical descents. Very Very steep, like you will probably get in over your head at some point steep.

Getting here: LHOHV lacks a formal parking lot or trailhead area. You can park at Buckingham Park (from dawn to dusk only), or along Lefthand Canyon Drive (where not prohibited). Please park all your tires on the dirt and off the pavement to keep the road safe for other mountain bikers, cars and roadies.

The general flow here is that you climb the fire roads and descend the trails. While none are officially marked downhill only, you won't have a good time climbing the singletrack and you'll be a hazard to yourself and other riders. There are a lot of trails, many are unmarked and unnamed. This trail area does not have a brain, please use your own.

From the Buckingham Park trailhead or wherever you parked along the road, head west on Lefthand Canyon Drive. Look for Lefthand Main #286 on your right. This trail starts out steep... and don't expect anything else from this ride.

From the entrance, continue left onto this trail system's main fire road, Lefthand Main #286. The road climbs gradually, the best chance you'll have at a warm-up. At the top, you'll reach the intersection called Five Points. Turn right on Fireman Hill 286D and get ready for a heart attack inducing climb. In the middle of one of the switchbacks on the road, you'll hit an intersection with Saddle West #841 and make a right. Then continue on to Saddle East #842 for a rowdy fun descent.

If that went well for you, then saddle up for Loop #2 which will be significantly steeper. If that was above your paygrade, there’s nothing easier to ride here unless you want to ride up and down the fire roads.

So… Loop #2. At the bottom of Saddle East #842, you’ll make a right back onto Lefthand Main #286. Climb back up to Five Points and then continue on #286 and prepare for one of the steepest climbs of this route. You'll wish you had a moto for this climb, it is steep, steep, steep When you finally make it to the top, turn left on Castle Gulch Ridge #287B and get ready for your first downhill of the ride.

Castle Gulch Ridge #287B contours south, gradually descending to another intersection. Along the way, have fun picking your way through the rocks and loose dirt. Go straight at the next intersection to get on Bon Scott. Bon Scott is the big brother to Saddle East #842. Even more steep, loose and rowdy this is one of the steepest descents in Boulder County. Buckle up and enjoy the ride!

Follow Bon Scott all the way back to Lefthand Main #286. Make a right (downhill) and bomb back down the way you came. At the next intersection, you can either turn right and go down to Lefthand Canyon Drive or continue up a short hill Lefthand Access trail for one more rowdy trail back to the car.

Detailed Description
Intro to LHOHV is a 14935 moderately popular extreme route located near Boulder Colorado. This mountain bike only route can be used one direction and has a extreme overall physical rating. This route includes 24 trails. This route climbs 665.8 with a max elevation of 2218.9 then descends -679.6.
Local Trail Association
Local trail association
Boulder Mountainbike Alliance (bouldermountainbike.org)
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Trail Products



  • Featured
  • Riding area
  • Primary Activity
    Mountain Bike
  • Difficulty rating
    Double Black Diamond
  • Route Type
  • eBike Allowed
  • Bike type
  • Direction
    One Direction
  • Physical rating
  • Ridelogs
More Stats for Intro to LHOHV mountain bike route
  • Altitude min
    6,065 ft
  • Altitude start
    6,110 ft
  • Altitude end
    6,066 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    5 miles
  • Distance down
    4 miles
  • Distance flat
    1,115 ft
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Who's Hugo?
Who's Hugo?
3:12 | 197 | comments: 0 | favs:
Nov 9, 2020
TwoRideTuesday #1 - Just Bon Scott!
TwoRideTuesday #1 - Just Bon Scott!
trail: Bon Scott
3:35 | 269 | comments: 0 | favs:
Nov 8, 2020

Recent Trail Reports Along Route

Lefthand Road
May 6, 2022 @ 3:38pm
May 6, 2022
Lefthand Access 1
Apr 29, 2022 @ 8:18am
Apr 29, 2022
Baughman's Gulley
Apr 21, 2022 @ 10:16am
Apr 21, 2022
Twin Saddles
Apr 16, 2022 @ 8:02am
Apr 16, 2022
Bon Scott
Apr 5, 2022 @ 5:57am
Apr 5, 2022
All clear.
more reports »
  • By WendyBMA BMA & contributors
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