15.1 miles
2,930 ft
-2,930 ft
2 miles
High Point

Up Armstrong to Pinecone Ridge. Then down Comstock Mine and Spiro.

Detailed Description
Armstrong > Pinecone > Comstock > Spiro is a 15 mile moderately popular intermediate route located near Park City Utah. This mountain bike only route. This route includes 5 trails. This route climbs 2,930 ft with a max elevation of 9,813 ft then descends -2,930 ft.
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20 Reviews & Comments

  • + 0
slambiase (Jun 18, 2022 at 14:52)
Made it to a little over 9100ft before hitting some mud and snow Sunday
  • + 1
mranzin (Aug 30, 2021 at 18:18)
I usually keep my timber bell on during the climb to alert the shuttle bros before they skid into me. It’s good both ways, but if you bash into someone on your descent, that’s on you, because it’s super popular both ways. Also, it’s nowhere near as sketchy as the also bidirectional Spiro.
  • + 0
EMG1992 (Aug 18, 2021 at 15:52)
Trail Armstrong
Great way to access Mid-Mountain. Beautiful climb
  • + 0
tabbid (Aug 6, 2021 at 9:15)
Trail Powerline
Good alternate to get to Shadow Lake area or up to Scott’s area/Puke hill access. It is “direct” at a grade that’s steep, but not terrible. Some loose rock, occasionally a downed tree, but it’s not busy and is a good way to mix things up to/from upper mountain once in a while.
  • + 2
Henke14 (Jul 13, 2021 at 19:53)
So torn here. Beautiful up and down. However, this is a collision accident waiting to happen. Almost had to bail off my bike on the way up as a DH rider was going too fast to stop around a blind curve. Given the proximity of Armstrong and the crest access, something badly needs to be done here. Designated up days? Alternating days? Another up only trail to connect from Armstrong? Again, can't recommend because it was dangerous beyond what is necessary but it was a beautiful trail for sure. Sad.
  • + 0
cdeutsch (Jul 14, 2020 at 6:16)
Trail Armstrong
These reviews must be based on age of the reviewer...I’m 74 and it’s a HARD slog for me!
  • + 1
JacquiShort (Jun 4, 2020 at 21:22)
Trail Armstrong
This is an awesome trail with stunning views. Uphill but mellow grade and nothing technical.
  • + 0
Gravityclown (May 31, 2020 at 21:21)
Clear up to 8800 feet then fallen trees mud and eventually some snow pack. Turned around at 8900 feet.
  • + 0
hi-dr-nick Reporter (Sep 23, 2019 at 20:22)
Connecting this trail to powerline going downhill is one of those hidden gems. For a straight trail, lots of little jumps and good dirt.
  • + 1
CBizek (Aug 24, 2019 at 17:11)
Trail Armstrong
This is a good challenging uphill without being overly brutal. Great way to access many other trails and it is nice that its shaded most of the way.
  • + 8
sgoldfield (Aug 6, 2019 at 12:04)
It's only a sketchy climb if you are riding out of control downhill. Armstrong to Pinecone is a fantastic beautiful and shaded way to climb to the top of the crest. It is also one of my personal favorite downhills, but it is a two-way trail and should be ridden as such. There are plenty of places on it with good sight lines that you can open it up as long as you are careful when it gets tighter lower down. Everyone can safely enjoy this trail both up and down.
  • + 1
jdpierce (Jul 10, 2019 at 19:08)
Trail Armstrong
As straight up climbs go, this one is as nice as you’ll find. The grade isn’t bad and mostly shade, but if you’re coming from sea level, you’re probably going to sucking air all the way up. Stay hydrated too.
  • + 1
hi-dr-nick Reporter (Jul 8, 2019 at 9:47)
Trail Armstrong
Wouldn’t call a slog, it’s pretty gradual and smooth. Easy climbing.
  • - 2
hi-dr-nick Reporter (Jun 13, 2019 at 19:11)
For god sakes people only climb this if it’s early season and other routes to the crest aren’t open yet. It’s such a high speed descent that it’s really sketch to climb.
  • + 1
ofresh (Jun 5, 2019 at 16:47)
Trail Armstrong
One of the nicest climbing trails in the Wasatch.
  • - 2
Boomingsooner (Jul 13, 2018 at 22:59)
Trail Armstrong
It is an uphill slog. Not for the faint of heart.
  • + 0
Devrin (Jun 19, 2018 at 16:53)
Great new connector up to Wasatch Crest! Don’t know if I’d call it a green however a lot of overhanging Aspen trees, I whacked my shoulder and went over the bars here Lol
  • + 1
thesquid (Sep 3, 2017 at 0:31)
Awesome high elevation climb and descent. One of the best in Northern Utah.
  • + 0
Fast44 (Jul 21, 2017 at 14:52)
A beotch to climb but gets one up to Shadow Lake and then Wasatch Crest quick.
  • + 2
Fast44 (Jul 19, 2017 at 18:50)
Fantastic climb to Wasatch Crest. Rides beautifully in either direction. Mostly climbs in stands of aspen trees, then higher up, pines. Nicely shaded and protects from wind. Comes out right at the top of Puke Hill, which is the brief, painful sun exposed fireroad access traditionally used by Wasatch Crest shuttlers riding north from Guardsmans Pass. From town via Armstrongs/ Pinecone ridge is just over 2900ft climb. Felt like less.

Trails in Route

Armstrong4 miles
Pinecone Ridge4 miles
Blazing Saddle3,353 ft
Comstock Mine2,890 ft
Powerline3,196 ft


  • Riding area
  • Primary Activity
    Mountain Bike
  • Difficulty rating
  • Ridelogs
More Stats for Armstrong > Pinecone > Comstock > Spiro mountain bike route
  • Altitude change
    1 ft
  • Altitude min
    6,966 ft
  • Altitude start
    6,966 ft
  • Altitude end
    6,965 ft
  • Grade max
  • Grade min
  • Distance climb
    8 miles
  • Distance down
    6 miles
  • Distance flat
    1,109 ft
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Trail Conditions
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  • Ideal
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Trail transparency
Keystone // Powerlines // Spiro 4K POV Park...
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trail: Powerline
25:23 | 21 | comments: 0 | favs:
Aug 21, 2022
Keystone // Powerlines // Spiro 4K POV Park...
Keystone // Powerlines // Spiro 4K POV Park City, Utah
25:23 | 21 | comments: 0 | favs:
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Recent Trail Reports Along Route

Pinecone Ridge
Oct 19, 2022 @ 2:19am
Oct 19, 2022
Blazing Saddle
Oct 8, 2022 @ 9:29am
Oct 8, 2022
Oct 7, 2022 @ 10:31am
Oct 7, 2022
Comstock Mine
Sep 17, 2022 @ 3:27pm
Sep 17, 2022
Aug 4, 2022 @ 11:10am
Aug 4, 2022
Great dirt, shaded trail keeps it from drying out.
more reports »
  • By bradleeduncan & contributors
  • #31298 - 153 views