2.2 miles
Distance
323 ft
Climb
-327 ft
Descent
00:21:36
Avg time
Supporters, Builders, Maintainers & Land Managers of Nelson Loop Trail

Nelson Loop Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    Hall Ranch
    Lyons, Colorado
  • Difficulty Rating
    Blue rate
  • Voted Difficulty
    Blue (1 vote)
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Fat
  • Direction
    Both Directions
    Popular direction shown
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Family Friendly
    Yes
  • eBike Allowed
    No
  • Global Ranking
    #891 in Mountain Biking [+]
    • #12138 in Trail Running
    • #17738 in Hiking
  • Local Popularity
    100 in Mountain Biking [+]
    • 40 in Trail Running
    • 100 in Hiking
  • Land Owner
    Boulder County Parks & Open Space

Nelson loop is when the fun descending of Hall Ranch begins Climb all the way up to Nelson loop and prepare for a fast descent the entire way down! This trail is a bi-directional loop but is best when ridden in a clockwise direction. If it has rained or snowed recently this trail tends to get closed easily due to mud.

Access Info

Starting Monday, April 14, 2025 Nelson (clockwise for half a mile) will be closed for bridge maintenance. The project is expected to be completed in three weeks.

Local Trail Association
Traditionally Indigenous Territory
More Stats for Nelson Loop multi-use trail trail
  • Altitude change
    -4 ft
  • Altitude min
    6,403 ft
  • Altitude max
    6,696 ft
  • Altitude start
    6,406 ft
  • Altitude end
    6,404 ft
  • Grade
    -0%
  • Grade max
    -23.3%
  • Grade min
    21.7%
  • Distance climb
    1 mile
  • Distance down
    1 mile
  • Distance flat
    138 ft
  • Avg time
    00:21:36
  • Avg reverse time
    00:21:37
  • view trail stats
Status:
on Apr 6, 2025
Variable
Avg: 4.46 (22 votes)
Your vote: 0

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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
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
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      Directions to nelson-loop trailhead (40.226600, -105.322890)
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      Nelson Loop Trail Reports

      statusdatedescription
      Apr 6, 2025 @ 9:46pm
      Apr 6, 2025
      Mar 14, 2025 @ 9:42am
      Mar 14, 2025
      		 Just enough moisture to make the dirt tacky
      Mar 12, 2025 @ 3:04pm
      Mar 12, 2025
      		 Dry and all clear. Little loose in the corners.
      Mar 10, 2025 @ 4:07pm
      Mar 10, 2025
      		Trail is open. Please update conditions if you ride
      Feb 22, 2025 @ 7:16am
      Feb 22, 2025
      		 Trail closed due to muddy conditions. Trail status will be updated once trail reopens.
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 0 rides
      •  
      6 Months
      • 62 rides
      • 12 miles avg distance
      All
      • 1,031 rides
      • Last: Apr 13, 2025

      Photos

      more »
      1 |
      Apr 11, 2025 @ 4:33pm
      Apr 11, 2025
      59 |
      Sep 26, 2023 @ 5:34pm
      Sep 26, 2023
      97 |
      May 28, 2022 @ 10:41am
      May 28, 2022
      155 |
      Dec 28, 2020 @ 10:22am
      Dec 28, 2020

      Routes with this trail

      more »
      titledistance
      Hall Ranch Flow9 miles
      Hall Ranch Technical Side featured10 miles
      Hall Ranch: Intermediate Fun featured7 miles
      Hall Ranch Technical Descent featured12 miles

      Trail Products

      3 Reviews & Comments


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      Videos

      more »
      youtuber Mountain Biking Hall Ranch, Upper Bitterbrush...
      12:49 | 607 | May 28, 2018 , Lyons
      Hall Ranch on the FATBOY - Now with extra...
      3:13 | 138 | Jun 8, 2023 , Lyons
      Hall Ranch MTB: Speed, Flow, Fun, and... SNAKES?
      22:20 | 217 | Aug 8, 2022 , Lyons
      Nelson Loop - Hall Ranch - Lyons - Colorado -...
      0:59 | 291 | Sep 27, 2021 , Lyons

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