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Greenhorn to Imperial Loop

Intermediate/Difficult
 4.3 (35) RECOMMENDED ROUTE

Well designed trails with great scenery through a variety of vegetation.


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Map Key

10.8

Miles

17.4

KM

100%

Singletrack

7,472' 2,277 m

High

5,873' 1,790 m

Low

1,817' 554 m

Up

1,911' 583 m

Down

7%

Avg Grade (4°)

28%

Max Grade (16°)

Dogs Off-leash

E-Bikes Allowed

Overview

A fun intermediate loop with views, flowers, and dusty singletrack.

Description

From the trailhead, keep left on Greenhorn Trail, cross a few bridges, and enjoy smooth easy riding as a few trails branch off to the left. Continue ascending, never very steeply, as the trail crosses through a huge variety of riparian vegetation from sagebrush to aspen trees before climbing through dense pine and fir forest to a high ridge.

At the intersection with Imperial Gulch Trail, proceed uphill for another 1/2 mile to the high point, then ride on downhill for a fun and fast descent. It's a bit dusty and exposed, but rewards riders with outstanding views of the Pioneer Mountains and occasional wildflowers. Contour down across grassy hillsides, popping in and out of small groves of aspen and pine. Attain the saddle, then cruise through a large flowery meadow with sweeping views of Mahoney Butte. After a wooded section that burned in the 2013 fire, the trail ends at a signed T intersection then crosses the Greenhorn Creek and arrives at the parking lot.

Contacts

Shared By:

Nick Wilder with improvements by Alisa Bondurant

Trail Ratings

  4.3 from 35 votes

#1

in Hailey

#442

Overall
  4.3 from 35 votes
5 Star
49%
4 Star
43%
3 Star
3%
2 Star
6%
1 Star
0%
Recommended Route Rankings

#1

in Hailey

#6

in Idaho

#442

Overall
329 Views Last Month
10,665 Since Jul 30, 2014
Intermediate/Difficult

0%
0%
50%
14%
36%
0%

Photos

One of the best downhills in the area ... so fast, so beautiful.
Jul 9, 2019 near Hailey, ID
Imperial is a seemingly never-ending, super fast downhill with views the whole way
Oct 10, 2019 near Hailey, ID
Halfway down the loooooong descent of Imperial!
Aug 16, 2018 near Hailey, ID
Wildflowers on Imperial Trail
Apr 10, 2015 near Hailey, ID
Greenhorn Gulch - Imperial Loop - Sun Valley, Idaho: this video shows it in all it's glory
Jun 9, 2020 near Ketchum, ID
Looking up Imperial Gulch
Jun 6, 2018 near Hailey, ID

Weather


Current Trail Conditions

Update Conditions
Minor Issues 19 days ago See History
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Check-Ins

Aug 28, 2020
Emily Smith
Aug 5, 2020
Jacob Hatfield
Tough climb but views and downhill worth it! One of my favorite rides yet. — 1h 37m
Jul 25, 2020
Taylor Miles
10.9mi
Jun 14, 2020
H P Boyle
Anti-clockwise is the easier way up. Views are stunning! 10.6mi — 1h 30m
Jul 2, 2019
Todd D
Jun 23, 2019
Sara Heuston
10.8mi
Jun 23, 2019
Emma McVey
A large group of dispersed eBikes made this a rather unenjoyable ride.... Quite steep!
Oct 1, 2018
KEV MAC