2.9 miles
Distance
225 ft
Climb
-223 ft
Descent
1 mile
High Point
0 ft
Altitude change
5,338 ft
Altitude min
5,338 ft
Altitude start
5,338 ft
Altitude end
-15.5%
Grade max
16.3%
Grade min
1 mile
Distance climb
2 miles
Distance down
1,391 ft
Distance flat

Opened on November 22, 2024 the Cobalt-Eagle loop is a 3-mile beginner friendly flow trail sure to put a smile on everyone's face. Cobalt was rerouted and opened to bikes in 2024 and Eagle trail got a rolly makeover at the same time. Best ridden counterclockwise (up Cobalt and down Eagle) this loop is great for kids looking for a short ride from the Boulder Valley Ranch trailhead or a fun add-on to longer rides. For extra credit, ride the Side trail singletrack that parallel Sage to get back to the trailhead.

Detailed Description
Cobalt-Eagle Loop is a 3 mile popular easy route located near Boulder Colorado. This mountain bike primary route. This route includes 2 trails. This route climbs 225 ft with a max elevation of 5,561 ft then descends -223 ft.
Tags
FlowyKid friendly

Trail Issues on Route

  • Minor Issue / Yellow: 1 trail (newest: Aug 10, 2025)

Local Trail Association

Local trail association
Boulder Mountainbike Alliance (bouldermountainbike.org)
Please consider joining or donating to the local riding association to support trail development & maintenance.
Donate to earn trail karma!

Stats

  • Distance
    3 miles
  • Altitude min
    5,338 ft
  • Altitude start
    5,338 ft
  • Altitude end
    5,338 ft
  • Climb
    225 ft
  • Descent
    -223 ft
  • Grade max
    -15.5%
  • Grade min
    16.3%
  • Distance climb
    1 mile
  • Distance down
    2 miles
  • Distance flat
    1,391 ft

Comments


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Trails in Route

Details

  • Featured
  • Riding area
  • Primary Activity
    Mountain Bike
  • Other Activities
    • E-Bike
    • Gravel Bike
    • Adaptive Bike
    • Horse
    • Hike
    • Trail Running
  • Difficulty rating
    Green
  • Route Type
    Loop
  • eBike Allowed
  • Bike type
    XC, Adaptive MTB, Gravel
  • Activity Logs
    1
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Trail transparency
  • Singletrack
Cobalt is Now Open To Bikes! (November 2024)
mtb
Cobalt is Now Open To Bikes! (November 2024)
trail: Cobalt
2:06 | 287 | comments: 0 | favs:
Dec 16, 2024

Recent Trail Reports Along Route

statustraildateconditiondescription
Cobalt
Aug 12, 2026 @ 6:52am (America/Denver)
Aug 12, 2026
Degge Trail
Aug 10, 2025 @ 5:14pm
Aug 10, 2025
more reports »
  • By WendyBMATF Pro BMA & contributors
  • #59547 - 1,185 views

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