21.9 miles
Distance
4,221 ft
Climb
-4,224 ft
Descent
2,745 ft
High Point

Great short challenging multiple loop of montebello and russian ridge

Detailed Description
Bay area loop Terun is a 22 mile moderately popular intermediate route located near Russian Ridge Open Space Preserve California. This mountain bike only route can be used both directions and has a moderate overall physical rating. This route includes 37 trails. This route climbs 4,221 ft with a max elevation of 2,745 ft then descends -4,224 ft.
Local Trail Association
Local trail association
Silicon Valley Mountain Bikers (www.svmtb.org)
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35 Reviews & Comments

  • + 1
Kidklayko (Jun 16, 2022 at 12:45)
Trail Alpine Road
Dirt Alpine is will be closing for Trail Maintenance on JULY 13th get your last rides in, it’ll be gone until Around October.
[Reply]
  • + 1
Kidklayko (Jun 16, 2022 at 12:45)
Trail Alpine Road
Dirt Alpine is will be closing for Trail Maintenance on JULY 13th get your last rides in, it’ll be gone until Around October.
[Reply]
  • + 1
Kidklayko (Jun 16, 2022 at 12:45)
Trail Alpine Road
Dirt Alpine is will be closing for Trail Maintenance on JULY 13th get your last rides in, it’ll be gone until Around October.
[Reply]
  • + 1
Kidklayko (Jun 16, 2022 at 12:45)
Trail Alpine Road
Dirt Alpine is will be closing for Trail Maintenance on JULY 13th get your last rides in, it’ll be gone until Around October.
[Reply]
  • + 1
Kidklayko (Jun 16, 2022 at 12:45)
Trail Alpine Road
Dirt Alpine is will be closing for Trail Maintenance on JULY 13th get your last rides in, it’ll be gone until Around October.
[Reply]
  • + 1
Kidklayko (Jan 7, 2022 at 9:50)
Trail Bella Vista
Really pretty trail with light rollers, be careful though lots of off-camber turns that if you miss you could go off the ridge. It would probably be a green if you weren't riding with the ridge to your left the entire time.
[Reply]
  • + 1
Kidklayko (Jan 7, 2022 at 9:47)
Trail Ridge
A little bit of tech, not bad a all, pretty flowy towards the bottom, just do not climb up the fire road at the bottom. It will not take you back to were you started.
[Reply]
  • + 1
Kidklayko (Jan 7, 2022 at 9:47)
Trail Ridge
A little bit of tech, not bad a all, pretty flowy towards the bottom, just do not climb up the fire road at the bottom. It will not take you back to were you started.
[Reply]
  • + 0
Frugalex (Nov 22, 2021 at 18:58)
Trail Ridge 3
Excellent smooth climb getting you to great single track.
[Reply]
  • + 0
richyatlarge MCBC (Oct 21, 2021 at 21:04)
Sweet trail
[Reply]
  • + 1
santacruuuz (Aug 14, 2021 at 23:09)
Bugs here are relentless (I swallowed one Razz ). It's a down and up. Easy ride down with some good speed. A good workout back up.
[Reply]
  • + 1
santacruuuz (Aug 14, 2021 at 23:09)
Bugs here are relentless (I swallowed one Razz ). It's a down and up. Easy ride down with some good speed. A good workout back up.
[Reply]
  • + 0
dfalore (Apr 28, 2021 at 20:48)
Trail Alpine Road
Tree down on middle third (gate to gate)
[Reply]
  • + 0
dfalore (Apr 28, 2021 at 20:48)
Trail Alpine Road
Tree down on middle third (gate to gate)
[Reply]
  • + 0
dfalore (Apr 28, 2021 at 20:48)
Trail Alpine Road
Tree down on middle third (gate to gate)
[Reply]
  • + 0
dfalore (Apr 28, 2021 at 20:48)
Trail Alpine Road
Tree down on middle third (gate to gate)
[Reply]
  • + 0
dfalore (Apr 28, 2021 at 20:48)
Trail Alpine Road
Tree down on middle third (gate to gate)
[Reply]
  • + 1
calialirose (Oct 19, 2020 at 10:00)
Trail Alpine Road
There was a tree down on the trail in the lower 1/3 of Dirt Alpine. This is relatively new and no worries --- plenty of visibility as you're ascending and descending but requires dismounting.
[Reply]
  • + 1
calialirose (Oct 19, 2020 at 10:00)
Trail Alpine Road
There was a tree down on the trail in the lower 1/3 of Dirt Alpine. This is relatively new and no worries --- plenty of visibility as you're ascending and descending but requires dismounting.
[Reply]
  • + 1
calialirose (Oct 19, 2020 at 10:00)
Trail Alpine Road
There was a tree down on the trail in the lower 1/3 of Dirt Alpine. This is relatively new and no worries --- plenty of visibility as you're ascending and descending but requires dismounting.
[Reply]
  • + 1
calialirose (Oct 19, 2020 at 10:00)
Trail Alpine Road
There was a tree down on the trail in the lower 1/3 of Dirt Alpine. This is relatively new and no worries --- plenty of visibility as you're ascending and descending but requires dismounting.
[Reply]
  • + 1
calialirose (Oct 19, 2020 at 10:00)
Trail Alpine Road
There was a tree down on the trail in the lower 1/3 of Dirt Alpine. This is relatively new and no worries --- plenty of visibility as you're ascending and descending but requires dismounting.
[Reply]
  • + 0
Twin8 (Sep 19, 2020 at 19:34)
The trail is open, and relatively flat. It seems to have been recently graded and “paved” near the parking lot, so it is super un-technical
[Reply]
  • + 0
Twin8 (Sep 19, 2020 at 19:34)
The trail is open, and relatively flat. It seems to have been recently graded and “paved” near the parking lot, so it is super un-technical
[Reply]
  • + 0
Twin8 (Sep 19, 2020 at 19:34)
The trail is open, and relatively flat. It seems to have been recently graded and “paved” near the parking lot, so it is super un-technical
[Reply]
  • + 0
Coezycoe (Aug 20, 2020 at 22:02)
Heads up this is closed at Page Mill trailhead, guessing due to ???? risk
[Reply]
  • + 0
Coezycoe (Aug 20, 2020 at 22:02)
Heads up this is closed at Page Mill trailhead, guessing due to ???? risk
[Reply]
  • + 0
Coezycoe (Aug 20, 2020 at 22:02)
Heads up this is closed at Page Mill trailhead, guessing due to ???? risk
[Reply]
  • + 0
Twin8 (Jul 26, 2020 at 10:47)
Starts as doubletrack before becoming single track. Not super technical, except for one creek crossing that can be exciting during the winter.
[Reply]
  • + 0
Twin8 (Jul 26, 2020 at 10:47)
Starts as doubletrack before becoming single track. Not super technical, except for one creek crossing that can be exciting during the winter.
[Reply]
  • + 1
MattCoss (Jul 22, 2020 at 17:45)
open but running West-East only due to Covid
[Reply]
  • + 0
branman12 (Jun 22, 2020 at 17:40)
Sick rollers to grab some air, nice and straight off skyline
[Reply]
  • + 1
deln78 (Jul 16, 2019 at 13:41)
Trail Charquin
The southern part is single track, not access road.
[Reply]
  • + 1
deln78 (Jul 16, 2019 at 13:41)
Trail Charquin
The southern part is single track, not access road.
[Reply]
  • + 0
Bail-Monkey (May 21, 2017 at 13:46)
5/11/17 closed
[Reply]





Trails in Route

Details

  • Riding area
  • Primary Activity
    Mountain Bike
  • Difficulty rating
    Blue
  • Route Type
    Loop
  • Direction
    Both Directions
  • Physical rating
    Moderate
More Stats for Bay area loop Terun mountain bike route
  • Altitude min
    1,158 ft
  • Altitude start
    1,170 ft
  • Altitude end
    1,168 ft
  • Grade max
    -49.3%
  • Grade min
    102%
  • Distance climb
    10 miles
  • Distance down
    10 miles
  • Distance flat
    1 mile
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Trail Conditions
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Top of Mountain | Drone View | Black Mountain,...
Top of Mountain | Drone View | Black Mountain, California
1:46 | 58 | comments: 0 | favs:
Jun 11, 2021
Riding dirt alpine after work.
Riding dirt alpine after work.
1:04 | 491 | comments: 0 | favs:
Sep 21, 2018
Riding alpine after work and messing around with a video.

Recent Trail Reports Along Route

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Sep 20, 2022
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Sep 15, 2022 @ 4:31pm
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Sep 11, 2022 @ 2:00pm
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Fun segment
more reports »
  • By Franco1205 & contributors
  • #24749 - 343 views
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