61.6 miles
12,821 ft
-12,825 ft
2 miles
High Point
This route is archived

Some portions of the course traverse private property.

Castle Peak 100k ultramarathon course updated for 2021.

Detailed Description
2021 Castle Peak 100k is a 62 mile expert race route located near Truckee California. This trail running primary route. This route includes 38 trails. This route climbs 12,821 ft with a max elevation of 9,039 ft then descends -12,825 ft.
Local Trail Association
Local trail association
Truckee Donner Land Trust (tdlandtrust.org)
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Past Events

27 Reviews & Comments

  • + 0
scunhagarmin (Sep 13, 2022 at 14:33)
We was
  • + 0
jkrogue (Aug 18, 2022 at 23:43)
Great trail. Rode it as an out and back and it definitely flows better counterclockwise. Clockwise is doable but expect a lot of technical climbing (which is also fun)! Bring lots of water. I had 2.5L and ran out about 2/3 of the way through
  • + 0
joncartermd (Aug 13, 2022 at 22:07)
Technical exercise in how to ride chunk. Some puckery rock descents and punchy chinky climbs. Fun!
  • + 0
johnnyXride (Jul 12, 2022 at 8:55)
Yep, this section offers plenty of short, punchy, balance oriented, granite tech sections. Agree, there aren’t any high risk zones, but it’s a good challenge to get through it without having to put your foot down. It pays to keep your eyes up the trail, and be ready for what may come around a blind corner and/or rise! A lot of fun if you enjoy this type of riding.
  • + 0
johnnyXride (Jul 12, 2022 at 8:44)
If you’re coming from the west, and headed up to the Drifter hut, well, the climb hasn’t lost any of its ummph! While conditions are currently dry, the wildflowers are still raging. Respites of shade are provided off and on from the afternoon sun. A few of the switchbacks provide a good challenge, but the view at the top makes it all worthwhile!
  • + 1
JulzCalz (May 25, 2022 at 12:12)
Looking forward to trying the trail, do any of you know if it's practicable now?
  • + 0
Kevridesabike (Apr 11, 2022 at 22:32)
I ride this trail quite a few times every season and have done it all the different ways - by far my favorite is to do it as a there and back from the Castle Peak trailhead with a turnaround at Lower Lola Lake. It’s a hard ride for the mileage and feels uphill both ways but wow what an awesome 3 hour ride!
  • + 1
loam-roamer TDMTB (Jul 18, 2022 at 10:47)
This is an awesome way to do this route!
  • + 0
Jadeeyes1113 (Nov 28, 2021 at 9:24)
Fun flow trail
  • + 0
Jadeeyes1113 (Nov 28, 2021 at 9:24)
Beautiful trail with quite a few tech sections. Nothing dangerous just challenging.
  • + 0
johnnyXride (Jul 22, 2021 at 22:53)
The work Truckee Trails Foundation has put in on this trail really shows. Many of the highly eroded sections have been armored with pavers, so the long and steady decline of tread has been dramatically slowed (as long as people ride the trail/pavers). Don’t worry, the trail has not been dumbed down, there’s still plenty of little challenges and chunky fun spread out through the miles. And if you dab foot, you didn’t ride the whole thing clean ;-). BTW, much like ski resort run ratings, yes they can vary from region to region, state to state, country to country. One person‘s cruise, can be another person‘s nightmare.
  • + 0
johnnyXride (Jul 22, 2021 at 22:39)
Truckee Trails Foundation reworked the stairs perhaps two years ago, making the upper two sections much more rideable for adventurous advanced intermediates who ride with confidence. The third section, however, which begins with the hard right corner, still contains plenty of baby heads :-).
  • + 0
sillawydna (Jul 11, 2020 at 15:55)
Great trail with beautiful views. Maybe it’s a regional thing, but in the NW this would be more of a blue than a black trail. Semi long, but nothing too technical about it. The stairs are rideable and not too bad.
  • + 0
roldog27 (Jul 4, 2020 at 16:04)
Start off like a fire road, ascending from Ana's Chute. But becomes a good ole single track soon, with some challenging technical features after a heart pounding climb. Before you get to the top, a fallen tree trunk will drastically narrow the path on the incline. Next, you'll find a dusty, loose rocky switchback turn. You're almost to the rocky edge at the top. I'd do it again!
  • + 0
roldog27 (Jul 3, 2020 at 15:51)
Trail Crow's Nest
The black diamond is for the combination of steepness with the many small to medium sized rocks, if you are ascending. Descent is pretty easy.
  • + 1
sjlorber (Oct 20, 2019 at 20:23)
Fantastic trail, rose counter clockwise but could easily be done in he opposite direction. beautiful lakes, some tiny patches of snow in the sides of the trail. Winter will be here soon!
  • + 1
krisrayner (Oct 18, 2019 at 21:58)
You either know you can ride stair step sections or not. You need decent momentum and commitment and you'll be fine. Hesitate or get slowed down by hikers and you'll probably walk a stretch. Otherwise a fun challenge to finish with.
  • + 2
WillieB (Oct 13, 2019 at 22:10)
Kinda sucks
  • - 3
eldofreeride (Oct 9, 2019 at 11:25)
This trail sucks
  • + 0
Vinnyl26 (Oct 7, 2019 at 12:23)
The most amazing mountain bike trail in the Tahoe Area. Great technical punchy climbs amazing views. It’s a must do ride
  • + 0
Nicksand5 (Aug 21, 2019 at 14:58)
This was a great trail. Yes it is not an introduction to mtb but certainly all rideable and lots of advanced alternative lines. The trail work was impeccable. Donated immediately. Initial climb is beautiful and smooth
  • + 1
WillieB (Aug 18, 2019 at 8:13)
Fun section of rolling tech trail!
  • - 1
OlekCzyz (Sep 29, 2018 at 0:28)
This trail took us 4h to complete. First 1/4th is very smooth..the next half 2,3/4 of trail gets more technical and we walked as much as we rode our bikes. There were a few portions that were completely impossible to ride. The last portion of the trail we walked down the stairs for 10 minutes. This trail is not easy so make sure you get an early start unless your an experienced biker
  • + 1
Mockg (Oct 19, 2018 at 21:32)
The trail difficulty has been revised and the stair section added as a separate "double black diamond" trail. I wouldn't call any of it impossible since I've rode it all including the stairs. I think the original "intermediate" rating it had was misleading many riders through so I hope this helps.
  • + 3
TheAngryTomato TRAILFORKS (Oct 20, 2018 at 8:03)
It's all ride-able Wink
  • + 0
lisamansell (Oct 26, 2017 at 9:10)
Awesome trail with lots of variety of terrain. We parked at the start and the ride back along the road and then bunny hill drive was not fun so consider taking two cars!
  • + 0
CaMtb06 (Sep 10, 2017 at 16:01)
Awesome trail.


  • Race Course
  • Race Date
    Saturday August 14, 2021
  • Riding area
  • Primary Activity
    Trail Running
  • Other Activities
    • Hike
  • Difficulty rating
    Black Diamond
  • Route Type
More Stats for 2021 Castle Peak 100k mountain bike route
  • Altitude min
    6,415 ft
  • Altitude start
    7,041 ft
  • Altitude end
    7,037 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    30 miles
  • Distance down
    28 miles
  • Distance flat
    4 miles
Avg: 4 (1 votes)
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
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Trail Popularity ?
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Radar Time
x Activity Recordings
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  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
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  • By TruckeeTrailMom DPMR & contributors
  • #30857 - 317 views