Glendora Mountain Road Bike Climb - PJAMM Cycling

Glendora Mountain Road


Discover the Beauty of Glendora Mountain Road Cycling

Explore this Climb

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Climb Summary

Cycling Glendora Mountain Road --

PJAMM Cycling’s choice for the most scenic cycling climb in Southern California.

California Top 10 Most Scenic Bike Climb

This is one of three routes to the top of Mt. Baldy:

  • Mt. Baldy Road (traditional route) - 13.1 miles at 6.7%
  • GMR to Mt. Baldy (the climb summarized on this page) - 27 miles at 3.8% (7.4% w/o descents)
  • Hwy 39 to Mt. Baldy - 27.3 miles at 3.5% (5.7% w/o descents)

Cycling GMR - Ride 27 miles gaining 6,645’ at 3.8% average grade.

The true grade after eliminating descents is 7.4%.

This is the more scenic alternative to the Mount Baldy Road route.  This version of the Mount Baldy bike climb begins at the corner of E. Sierra Madre Avenue and Glendora Mountain Road in Glendora, California.

Bike climb Glendora Mountain Road - The beginning of bike climb up Glendora Mountain Road - street sign

This bike climb is not a Top 100 US climb because it has 1,115' of descent, taking it out of the "nearly all" continuous climb category. It would rank #97 on the Top 100 US list if the descent were eliminated.  In other words, it is still a tough climb.  GMR, as it is referred to in Southern California, begins its ascent between Mt. Baldy Road to the East and Highway 39 (Dawson Saddle and Crystal Lake) to the West.  This climb shares its last 4.5 miles with the Mt. Baldy climb.

PJAMM cyclist riding bike up Glendora Mountain Road from Glendora CA

Enter Angeles National Forest (655,387 acres; est. 1908)

Bike climb on GMR - view of roadway and ridgeline

Glendora Mountain Ridge as seen from Morris Reservoir on way to Dawson Saddle/Crystal Lake.

GMR is upper center of photo.

\Bike climb Glendora Mountain Road - aerial drone photo of Morris and San Gabriel Reservoirs and Glendora Mountain Road

This climb is in the San Gabriel Mountains of the Pacific Coast Range.

Bike climb on GMR - view of roadway and ridgeline

GMR ridgeline - Mt. Baldy center-right of photo.

Exceptional views of the surrounding San Gabriel Mountains.

Bicycle ride Glendora Mountain Road - PJAMM cyclist on bike on road at merge of Glendora Mountain Road and Glendora Ridge Road. 

From November through March the surrounding mountains are often dusted (or covered) with snow.

Bicycle ride Glendora Mountain Road - PJAMM cyclist on bike on road at merge of Glendora Mountain Road and Glendora Ridge Road.

Veer right onto Glendora Ridge Road from GMR at mile 9.7

Horse Canyon Saddle.

Cyclist at stop sign at Mt Baldy Village coming from Glendora Mountain Road 

Enter Mt. Baldy Village and merge onto Mt. Baldy Road at mile 21.7.

We highly recommend Mt. Baldy Lodge

Great atmosphere and quite cycling friendly.

There is a water fountain at the Mt. Baldy Post office at mile 21.8

Cycling Glendora Mountain Road - Mt. Baldy Lodge

Mt. Baldy Village -- mile 22.



One of the 12 switchbacks on the last three miles.

Cycling Mt. Baldy - cyclist on bike riding up to Mt Baldy Resort sign

Riding through hairpin #2.

Biking Glendora Mountain Road - road, mountain and bear crossing sign

OK -- we are only a few miles from LA, but it gets rural quick.

Bicycle ride Glendora Mountain Road - coyote on side of road

We have seen no bears on our 8 trips up this climb, but . . .  

. . . we did see a coyote August, 2019

Cycling Glendora Mountain Road - cyclist on bike riding up to Mt Baldy Resort sign

Sign just before the left turn to the ski resort parking lot.

Bike climb Glendora Mountain Road - cyclist riding past 16% grade sign

The ¼ mile leading to the Mt. Baldy sign is the steepest of the entire climb (14% average).

cycling Glendora Mountain Road - PJAMM cyclist on bike on road with center line and mt baldy resort sign

Final push to the sign - only ½ mile at 3% from there.

Cyclists at the finish of Mt Baldy and Glendora Mountain Climb - AMGEN California finish.

Cycling Mt. Baldy - cyclist on bike riding up to Mt Baldy Resort sign

That’s a wrap!



Andrew Talansky wins GMR/Mt. Baldy Stage 5 of the 2017 Tour of California


Queen Stage (Stage 6) 5-17-19 - Glendora Ridge Road

After Stage 6 of the 2019 Tour of California is complete, Mt. Baldy (GMR always included) will have been a stage finish five of the 13 years the Tour has been held (each year since 2006).  The route on the Mt. Baldy stage is always the same route:

The route for all five ToC GMR/Baldy mountain-top finishes (2019 Map).

The Tour of California Route is generally:

  • Start in Ontario and ride to Mt. Baldy Road;
  • Climb Mt. Baldy Road to the village of Mt. Baldy;
  • Turn left at Mt. Baldy onto Glendora Ridge Road;
  • Ride Glendora Ridge Road to its intersection with Glendora Mountain Road;
  • Turn right onto Glendora Mountain Road and ride to East Fork Road;
  • Ride East Fork Road to Highway 39;
  • Ride Highway 39 south towards Azusa, past San Gabriel Reservoir to Sierra Madre Road;
  • Ride Sierra Madre Road to Glendora Mountain Road;
  • Climb Glendora Mountain Road to Glendora Ridge Road on to the village of Mt. Baldy;
  • Turn onto Mt. Baldy Road and continue five miles to the finish of the climb at Mt. Baldy Resort.

Chris Horner wins 2011 ToC but Levi gets Stage 7!

Robert Gesink wins in sprint finish with Darwin Atapuma.

After Mt. Hamilton (in Northern California’s East Bay/Silicon Valley), Mt. Baldy/GMR has been included in more Amgen Tours than any other mountain climb.

2015 -- Jullian Alaphilippe.

Stage Profile for all Glendora Mountain / Mt. Baldy ToC stages.

Summary from 2015 Tour of California Website:

            “Route Information: May 16, 2015 - Stage 7 Finish

The climb up to Mt. Baldy is an integral part of the Amgen Tour of California’s nine-year history. Since 2011, when it was first introduced as the race’s first true mountaintop finish, the steep switchbacks up to the Mt. Baldy Ski Area at 6,500 feet elevation have served as the deciding factor in crowning the overall champion. Due to overwhelming demand from the fans, Mt. Baldy is back for the Amgen Tour of California 10th Anniversary after a two-year hiatus!
Mt. Baldy is located 45 miles from downtown Los Angeles and is a popular location for hikers, sightseers and cyclists. During autumn, spring, and summer you will find hundreds to thousands of outdoor enthusiasts traveling Mt. Baldy every week to summit the tallest peak in Los Angeles County, Mt. San Antonio (Elevation 10,068 feet), which is accessible from a trail network originating at the Mt. Baldy Ski Area. For those who prefer a two-wheeled adventure, cyclists from far and wide visit Mt. Baldy to climb the challenging switchbacks, which ascend over 2,000 in only 4.3 miles (9% average gradient). In the winter months Mt. Baldy is known for its steep ski terrain and easy access from the big city below”  (see also:
2019 ToC summary of Baldy Stage).


Top Southern California Road Bike Climbs - clockwise from top left to middle:

Nate Harrison Grade, San Diego; Gibraltar Road, Santa Barbara; Palomar Mountain, San Diego

Glendora Mountain Road, Los Angeles; Mt. Baldy, Los Angeles