15.7 miles
2,505 ft
-2,479 ft
2 miles
High Point

Armstrong to Jenny's to Johns

Detailed Description
Armstrong to Jennys to Johns is a 16 mile popular intermediate route located near Park City Utah. This mountain bike only route. This route includes 4 trails. This route climbs 2,505 ft with a max elevation of 8,403 ft then descends -2,479 ft.
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18 Reviews & Comments

  • + 0
codekitchen (Oct 9, 2022 at 13:09)
Trail Johns
Rose John’s for the first time in maybe 5 years today. I don’t know why it’s been so long, this trail still rocks. I’m glad not all descents are this technical and slow, but I wish there were more trails like this. It’s like a puzzle that will have you grinning the entire time.
  • + 1
paterjo (Oct 7, 2022 at 19:00)
Trail Johns
Starts off rocky and then lots of really tight sections between trees. Penalizes riders with wide handlebars. This is a trail that is an upper body workout, lots of upper body maneuvering to get through the trees. If you want an easy flow trail look elsewhere, this requires old school skills.
  • + 0
makita29 (Jul 29, 2022 at 11:00)
Trail Johns
The pinnacle of techy trails! A lot of fun down! Built in the old school style way back when…..(trees and roots were to be saved and savored)
  • + 0
jcarpe43 (Jun 21, 2022 at 12:05)
Trail Johns
Super overgrown right now. Hard to see what’s around the next bush. I found myself pedaling almost the whole time because I couldn’t maintain any speed/momentum.
  • + 0
Bociancz (Aug 24, 2021 at 0:01)
Trail Johns
This is an awesome oldschool trail that reminds me of my PNW and EU days. Certainly unique for Park City. It is really narrow in spots and I think you need to like this particular style of trails to really enjoy it, but if you do, it is super fun.
  • - 1
Dandraperoutside (Jul 15, 2021 at 9:40)
Trail Johns
This trail is a fun old school classic! I really hope nobody tries to “improve” it. It’s just as much fun up as it is down. And yes- I climb it with my Lefty all the time
  • + 0
econwatch (Jun 28, 2021 at 14:52)
Trail Johns
All the angled tree roots, loamy soil and gracious shade reminded me more of North Van than Utah. Just missing the rainy slickness to cause your rear tire to wig out and topple you into the brush. Yeah its tight and knar in its own way, going back.
  • + 0
Spedden (Jun 26, 2021 at 12:26)
Trail Johns
Good shaded hiking trail through dense aspen. Truly a character building mountain biking route. On the upper section the trail in lined by aspen with scars right at the height of handlebars, and it is constant. The trail is also paved with tree roots coming in at every angle. A hiker would not have to worry about high speed mountain bikers, the trail would tend to filter them out early.
  • - 1
prabhvv (Aug 2, 2020 at 18:33)
Trail Johns
Although this is listed as a blue on Trailforks, the park city mountain resort summer map has it as a black. I would rate it right on the edge of both. Not a black because of rocks, drops or steep descents. However, the low speed required to navigate the tight turns and the narrow tree clearance makes it a trail prone to an endo or two if you hit one of the many roots the wrong way.
  • + 1
NoGr1018 (Jul 30, 2020 at 6:58)
Trail Johns
This trail has so much potential, but I wish that the land owners would be willing to cut down just a couple aspens around the switchbacks time make it wide enough to ride at a decent pace. Definitely a trail designed before 780 mil bars were a thing, but everyone should ride it up or down at least once.
  • - 1
blofft (Jul 23, 2020 at 20:20)
Trail Johns
I wouldn’t ride it every day but you should experience it. Super unique technical trail through a gorgeous aspen grove. Lots of roots and tight handle bar shoves through the trees. Laughed a little, grunted some, but smiled the whole way.
  • + 0
NoGr1018 (Jun 1, 2020 at 14:10)
Trail Mid Mountain
As of today, there were 7 dead aspens blocking the trail going east towards CMG. none of them were rideable, so had to shoulder the bike and climb over. Hoping someone with more lumberjack experience than I do can get out there soon and remove them.
  • - 1
Mjj1066 (Aug 16, 2019 at 20:17)
Trail Johns
Probably the most unique trail in the entire area. Twisty, rooty “gnar” without any major risk. I find this super fun.
  • + 1
gafoto (Aug 16, 2019 at 9:51)
Trail Johns
This trail is an acquired taste. It’s a bear to climb up to the start and despite losing elevation you’ll feel like you’re climbing the whole time. You will almost certainly be forced to yield to a fifty year old man climbing the trail on a cannondale lefty. Very techy and extremely slow for most mortals.
  • - 2
Sailanarmo (Aug 10, 2019 at 17:21)
Trail Johns
100% not a blue trail. 1000% a very technical black diamond. You cannot gain any speed going down hill, there are TONS of roots on it where you can easily catch your pedals (as I did twice on this trail) I would avoid this trail of you can. Unless you want to try your hand at a very technical black diamond trail.
  • + 1
doaway (Sep 6, 2018 at 8:13)
Too many roots and corners, could not enjoy the ride. Not recommended to ride both ways.
  • + 1
Rades (Aug 9, 2018 at 23:25)
Trail Johns
Personally would avoid this trail. May better ways down or up
  • + 0
skoch (Jul 6, 2018 at 9:11)
Trail Mid Mountain
Do g

Trails in Route

Mid Mountain2 miles
Mid Mountain4,964 ft
Jenni's (Upper)3 miles
Johns2 miles


More Stats for Armstrong to Jennys to Johns mountain bike route
  • Altitude change
    25 ft
  • Altitude min
    6,971 ft
  • Altitude start
    6,971 ft
  • Altitude end
    6,995 ft
  • Grade max
  • Grade min
  • Distance climb
    8 miles
  • Distance down
    7 miles
  • Distance flat
    3,632 ft
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Trail transparency
Jennys 7-29-21
Jennys 7-29-21
73 | comments: 0 | favs:
Jul 30, 2021
side berm action
Mid Mountain Trail 2011
Mid Mountain Trail 2011
6:47 | 279 | comments: 0 | favs:
Apr 26, 2020

Recent Trail Reports Along Route

Mid Mountain
Oct 19, 2022 @ 2:19am
Oct 19, 2022
Jenni's (Upper)
Oct 9, 2022 @ 1:57am
Oct 9, 2022
Oct 7, 2022 @ 4:11am
Oct 7, 2022
Trail is in great shape, starts off rocky and then lots of really tight sections between trees. Penalizes riders with wide handlebars. This is a trail that is an upper body workout, lots of upper body maneuvering to get through the trees.
Mid Mountain
Oct 5, 2022 @ 2:49am
Oct 5, 2022
Great climb and descent, nicely graded
more reports »
  • By jjfoley2018 & contributors
  • #30733 - 443 views