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1,043 ft
Distance
-210 ft
Descent
00:02:27
Avg time
-210 ft
Altitude change
6,376 ft
Altitude min
6,586 ft
Altitude max
6,586 ft
Altitude start
6,375 ft
Altitude end
-20.2%
Grade
-39.3%
Grade max
-4.2%
Grade min
1,043 ft
Distance down
00:02:27
Avg time
1.0 Details
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Activities
- Mountain Bike
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Riding AreaLefthand OHV
Boulder, Colorado -
Difficulty Rating
-
Local Popularity45 in Mountain Biking
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Global Ranking#29936 in Mountain Biking
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Trail TypeSingletrack
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DirectionDownhill Only
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Dogs AllowedYes
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eBike Allowed
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Land OwnerUSFS - Boulder Ranger District
Starts off with some off-camber switchbacks and rapidly mellows out to become fast and wide open where it crosses the fire road. There's a small gap jump with a b-line to the right, and then a few more turns until you come out at the bottom of Community College.
This trail is unsanctioned.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 11 rides
- 7 miles avg distance
All
- 60 rides
- Last: Jun 27, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
1.0 Trail Reports
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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
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- Very Dry
Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
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- < 50%
- bi-directional trail
- no data
Trail Last Ridden
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- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
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Trail Popularity ?
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Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
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Jump Magnitude Heatmap
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BC Backroad Status
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Directions to 1-0 trailhead
(40.111130, -105.330580)
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Nearby Trails
- Ridgeline Connector 797 ft
- Lower Ridge (skinny Pete) 1,329 ft
- Deadass 1,332 ft
- Community College Bottom Jump Line 1,355 ft
- Community College Alt Line 1,358 ft
- #583482 - 699 views
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Frequently Asked Questions About 1.0
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Where is 1.0 located?
1.0 is located in Lefthand OHV, Boulder, Colorado, United States. It is part of the Lefthand OHV trail network. The trailhead is located at coordinates 40.11113, -105.33058.
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How hard is 1.0?
1.0 is rated as Black Diamond difficulty. The average grade is 20.2%.
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What is the elevation gain for 1.0?
The trail has 210 ft of elevation descent. The elevation ranges from 6,376 ft to 6,586 ft.
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Is 1.0 a point to point trail?
Yes, 1.0 is a point to point trail. The direction is Downhill Only. The trail type is singletrack.
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