Glendora Ridge Motorway is a 7.7 mile lightly trafficked out and back trail located near Glendora, California that features beautiful wild flowers and is good for all skill levels. The trail is primarily used for hiking, walking, trail running, and road biking and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

7.7 miles
1,692 feet
Out & Back

dogs on leash


road biking

trail running




wild flowers


no shade

private property

As of August 8, 2018, the road leading to the trailhead is closed due to extreme fire risk. During this closure, the trail can still be accessed on the eastern side via the Upper Colby Trail. This is a hiking and biking trail. It can no longer be accessed by vehicle.

4 months ago

To clarify, this trail is NOT CLOSED. However, you can only access it from Glendora Mountain Road or from a hike up the Upper Colby Trail. The Motorway crosses private property between Azusa Peak and the bottom of the hill and the lower entry in Azusa is gated off and not accessible to the general public. You can hike it past Azusa Peak in the downhill direction, but will eventually start seeing warning signs about private property and will need to turn around back toward GMR unless you have permission to pass through from Rancho Vasquez. (I am not sure if this can actually be acquired.)

Sweeping views from the ridgeline. Relatively easy hike compared to others in the area if you start at GMR. Toughest stretch is coming back, ascending from Azusa Peak to Glendora Peak, but still a relatively moderate ascent.

11 months ago

Went to go hike this today and access road to get there is closed.

Monday, September 18, 2017

It was a beautiful hike, the view was amazing (I posted a few pictures). We went from around 2pm to 7pm and by far the best view and lighting was the 5-7pm window. Definitely plan on coming back at some point soon. The only down side was that we had a ton of gnats following us. Especially for the last half of the way there and the first half of the way back. Also, we also saw three tarantulas on the way back, which was pretty awesome (photos shared). Definitely a fun and unexpected adventure!
Overall though I highly recommend it.

off road driving
Monday, August 28, 2017

Closed to vehicles. :(

Saturday, August 12, 2017

went about 7am and back in a little less than 3 hrs. lots of gnats at the beginning but on my way back they died down. you get that nice secluded feel at the beginning and cool city views for the second half. incline and decline for the first half and most of the incline is on your way back. pretty cool.

Monday, May 15, 2017

moderate to difficult depending on heat. lots of hills and incline little to no shade

7 months ago

10 months ago

Thursday, November 30, 2017

Tuesday, July 11, 2017

Saturday, June 17, 2017

Sunday, February 15, 2015

Thursday, January 02, 2014