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Lower Monroe Truck Trail

Intermediate
 4.2 (74) RECOMMENDED ROUTE

A great doubletrack to the top of Glendora Mountain Road and a screaming downhill.


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Map Key

16.1

Miles

25.9

KM

65%

Singletrack

3,435' 1,047 m

High

1,201' 366 m

Low

2,319' 707 m

Up

2,319' 707 m

Down

5%

Avg Grade (3°)

14%

Max Grade (8°)

Dogs Unknown

E-Bikes Unknown

Overview

The Lower Monroe Truck Trail combines a flat doubletrack rock garden with a steady but gradual eight-mile twisty climb to the top of Glendora Mountain Road. The reward comes in the form of a scenic eight-mile descent back to the start point.

Need to Know

A large parking area is available along Glendora Mountain Road approximately 1/2 mile south of the trailhead and in smaller patches leading into the trailhead.

Description

The ride begins through a fairly flat rock garden creek, a bumpy and twisty 1.7-mile section with intermittent tree cover, but nothing extremely technical. The trail is mostly doubletrack, but narrows to singletrack in various spots along the rock garden.

At the end of the rock garden, the doubletrack takes a sharp right turn to begin a 6.2-mile climb. The climb is not extremely difficult, but it is steady with a very small number of flat areas and short descents along the way. A majority of the ride does not contain any tree cover.

At 3.3 miles, there is a plateau with amazing views of the San Gabriel Valley and south towards Orange County. This is a popular rest point before the climb gets a bit steeper.

From the rest point, the trail continues to climb as it winds along various sides of the mountains, providing great scenery. The trail ends at a turn-around point with a gate that leads to a dirt parking lot, adjacent to Glendora Mountain Road. If you want to skip the climb workout, you can shuttle to this parking lot and downhill the trail all day long.

Making a 180° turn at the gate will send you right back down the way you came up, but at a MUCH faster pace. The ride down Lower Monroe Truck Trail can be compared to a downhill park without the crazy jumps and super sharp turns. It is a fast-paced. twisty ride, negotiating a trail that is rocky and rutted in many places with trail-hugging vegetation.

The downhill seems to last forever and is guaranteed to put a constant smile on your face. On the lower area of the descent, you may encounter a few pedestrians, so a cowbell will serve your downhill well.

Also full-finger length gloves are highly recommended during dry summer months, to protect yourself against those handlebar-level thorny plants. Since you'll be exposed to the sun for the majority of the trail, a good supply of water is also recommended.

Contacts

Shared By:

Aviv Bar

Trail Ratings

  4.2 from 74 votes

#141

Overall
  4.2 from 74 votes
5 Star
38%
4 Star
50%
3 Star
11%
2 Star
1%
1 Star
0%
Recommended Route Rankings

#19

in California

#141

Overall
542 Views Last Month
28,707 Since May 29, 2014
Intermediate

0%
0%
83%
2%
16%
0%

Photos

GMR EAST SESSION - JAN '16
Feb 1, 2016 near San Dimas, CA
Climbing up, about a mile north of Mystic Cyn.
Nov 26, 2015 near Glendora, CA
GMR viewed from Mystic Canyon
Oct 11, 2015 near Glendora, CA
Mystic Canyon
Oct 11, 2015 near Glendora, CA
Lower Monroe Truck Trail Downhill on a 2020 Specialized Fuse Comp Hardtail
Jul 17, 2020 near San Dimas, CA
Lower Monroe Trail Guide
Sep 23, 2018 near Glendora, CA

Weather


Current Trail Conditions

Update Conditions
All Clear 1 day ago See History
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Check-Ins

Mar 6, 2021
A V
Feb 28, 2021
A V
Nov 27, 2020
Timo Leahy
All clear and well ridden in. Easy to go reaally fast on the downhill...weekend hikers were out en masse.
Jul 24, 2020
Julio Pombal
lower montoe
May 25, 2020
Kirill Anoshin
May 2, 2020
Emmanuel Pandy
Feb 21, 2020
Mac Martinez
Feb 13, 2020
Mac Martinez
First ride on the trail