43.8 miles
Distance
4,290 ft
Climb
-4,281 ft
Descent
2 miles
High Point
8 ft
Altitude change
5,574 ft
Altitude min
6,109 ft
Altitude start
6,115 ft
Altitude end
-38.7%
Grade max
40.1%
Grade min
17 miles
Distance climb
25 miles
Distance down
2 miles
Distance flat

Elkhorn-Greenhorn Gulch-Up Imperial and across Mars Ridge (Very Difficult)-Down Red Warrior (river crossing at bottom)-down Warm Springs Road back to Elkhorn

Detailed Description
Condo-Mars Ridge Loop is a 44 mile popular intermediate route located near Sun Valley Idaho. This mountain bike only route. This route includes 20 trails. This route climbs 4,290 ft with a max elevation of 8,503 ft then descends -4,281 ft.

Trail Issues on Route

  • Minor Issue / Yellow: 2 trails (newest: Jun 19, 2026)
Local Trail Association
Local trail association
Wood River Trails Coalition (woodrivertrailscoalition.org)
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Stats

  • Distance
    44 miles
  • Avg time
    29 hr 9 min
  • Altitude change
    8 ft
  • Altitude min
    5,574 ft
  • Altitude start
    6,109 ft
  • Altitude end
    6,115 ft
  • Climb
    4,290 ft
  • Descent
    -4,281 ft
  • Grade max
    -38.7%
  • Grade min
    40.1%
  • Distance climb
    17 miles
  • Distance down
    25 miles
  • Distance flat
    2 miles

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Trails in Route

Details

  • Riding area
    Sun Valley
  • Primary Activity
    Mountain Bike
  • Difficulty rating
    Blue
  • Bike type
    AM
Avg: 4 (2 votes)
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Flat N NE E SE S SW W NW
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    Photos

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    youtuber Greenhorn Gulch and Imperial Trail
    Greenhorn Gulch and Imperial Trail
    trail: Greenhorn
    10:29 | 281 | comments: 0 | favs:
    Aug 26, 2022

    Recent Trail Reports Along Route

    statustraildateconditiondescription
    Greenhorn
    Jun 19, 2026 @ 7:32pm (America/Boise)
    Jun 19, 2026
    		One tree down above the imperial intersection.
    Red Warrior
    Jun 9, 2026 @ 9:22pm (America/Boise)
    Jun 9, 2026
    		This applies for RW heading N towards Warm Springs. RW looser than normal with more babyheads in the trail than I’ve ever seen. One tree down. Early season conditions
    Saddle Sun Valley Bike Path
    Jun 14, 2025 @ 2:11pm
    Jun 14, 2025
    		Bike path in good shape. Easy to get from Ketchum to Sun Valley.
    Warm Springs Bike Path
    Jun 7, 2025 @ 11:11am
    Jun 7, 2025
    Oct 20, 2023 @ 3:33pm
    Oct 20, 2023
    		Pretty overgrown right now, lots of tall grass very close to trail. Impossible to see around most of the corners on the Imperial descent, a little sketchy in spots.
    more reports »
    • By Joeyrobby & contributors
    • #9683 - 1,830 views

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