27.7 miles
Distance
6,283 ft
Climb
-6,209 ft
Descent
3,364 ft
High Point
74 ft
Altitude change
680 ft
Altitude min
680 ft
Altitude start
755 ft
Altitude end
0.1%
Grade
-77.5%
Grade max
68%
Grade min
13 miles
Distance climb
13 miles
Distance down
1 mile
Distance flat

Ride to Mount Umunhum from the Lexington Reservoir. Can start from downtown Los Gatos and end at a nice bakery. I haven't done the ride yet, but wanted to check out the distance and elevation gain.

Detailed Description
Mount Umunhum Loop is a 28 mile moderately popular easy route located near Los Gatos California. This mountain bike primary route. This route includes 8 trails. This route climbs 6,283 ft with a max elevation of 3,364 ft then descends -6,209 ft.
Tags
Family friendly

Trail Issues on Route

  • Minor Issue / Yellow: 1 trail (newest: Jan 1, 2026)

Local Trail Association

Local trail association
Midpeninsula Regional Open Space District (www.openspace.org)
Please consider joining or donating to the local riding association to support trail development & maintenance.
Donate to earn trail karma!

Stats

  • Distance
    28 miles
  • Avg time
    3 hr 18 min
  • Altitude min
    680 ft
  • Altitude start
    680 ft
  • Altitude end
    755 ft
  • Climb
    1 mile
  • Descent
    -6,209 ft
  • Grade
    0.1%
  • Grade max
    -77.5%
  • Grade min
    68%
  • Distance climb
    13 miles
  • Distance down
    13 miles
  • Distance flat
    1 mile

8 Reviews & Comments


We hope you've been enjoying Trailforks!

Create a FREE account to view all route reviews and much more.

Trails in Route

Details

Avg: 2 (1 votes)
close
Trail transparency
  • Singletrack
  • Unpaved
mtb
trail: Kennedy
286
mtb
trail: Kennedy
264
mtb
trail: Kennedy
223
mtb
trail: Kennedy
222
Mt. Umunhum Trail
mtb
Mt. Umunhum Trail
trail: Mt Umunhum
20:33 | 379 | comments: 0 | favs:
May 27, 2023
youtuber Back Woods
mtb
Back Woods
trail: Mt Umunhum
36:12 | 454 | comments: 0 | favs:
Oct 12, 2022

Recent Trail Reports Along Route

statustraildateconditiondescription
Limekiln - Lower
Oct 12, 2026 @ 3:23pm (America/Los_Angeles)
Oct 12, 2026
Lower Priest Rock
Oct 12, 2026 @ 3:23pm (America/Los_Angeles)
Oct 12, 2026
Freshly graded
Woods Trail
Jan 1, 2026 @ 2:24pm (America/Los_Angeles)
Jan 1, 2026
Additional erosion rock since last year in the form of ruts and loose at higher elevations. Lower section was wet but in reasonable shape.
Kennedy
Jan 1, 2026 @ 2:24pm (America/Los_Angeles)
Jan 1, 2026
Some ruts from runoff erosion, a bit worse than last year.
Mt Umunhum
Oct 14, 2023 @ 1:19am
Oct 14, 2023
more reports »
  • By hammersorethumbTF Pro & contributors
  • #17471 - 3,741 views

Hit the Trail

Open in App

Get this route on your phone instantly.

Download Route

Save to wishlist, Garmin & download.