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Hiking Monserate Mountain

May 6, 2022 By Chris Griffith 2 Comments

Monserate in the fog

A popular hike in north-inland San Diego County, Monserate Mountain provides a good workout with spectacular views from its summit. This moderate trail climbs 1,160 feet in 1.6 miles and is a memorial to honor all the fallen first responders who lost their lives on 9/11. The trail markers A1-A11 represent every 10th floor of the former twin towers.

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Trail Details
Summit Elevation: 1,553 feet
Distance: 3.1 miles (out and back), 4.4 miles (loop)
Time: 2 hours
Difficulty: Moderate
Elevation gain: 1,170 ft
Dogs: Yes
When to go: Year-round

Getting to the Trailhead

The trailhead is just to the east of the I-15, just past the junction with Hwy. 76. Exit on Pala/Oceanside/Bonsall/Palomar Mtn. (Exit 46). Head east to Horse Ranch Creek Road, then turn left. Continue north for about 1.7 miles. You will find parking along the side of the road. The trailhead will be on the east side of the road. Get turn-by-turn directions via Google Maps.

Hiking Monserate Mountain

The hike begins under new trailhead signage, so make sure to stop and grab your photo with it. Shortly after that, you will pass through the actual gate into the preserve. The wide dirt trail will quickly rise up before you. It is a popular hike, so you should see fellow hikers and runners working their way up and down the trail.

Montserate Mountain Gateway

9/11 floor markerThis trail is also a memorial to honor all the fallen first responders who lost their lives on 9/11. You will see markers, denoted A1-A11, representing every 10th floor of the World Trade Center.

The trail is wide but can be a bit rocky and have some rain ruts to be mindful of as you continue your climb. After about 3/4th mile, you will reach a junction just after the A5 marker. Turn left if you want to take the direct route to the summit. If you want to do this hike as a loop, this is the junction where the loop will return to. The noise from the freeway should have faded away by now. 

As the trail turns north, you will pass junctions with two marked side trails. Stay to the right past Red Diamond Trail and Canonita Trail at 1.05 miles and 1.35 miles from the start, respectively. Just past the junction with Canonita Trail, the trail will make a sharp turn to the east. 

At about 1.5 miles into the hike, the trail will plateau just below the summit. You will reach another junction here as well. If you take the left fork, this will take you onto the summit proper. The right fork will be the one to use for the full loop. 

Stairs near the summit of Monserate Mountain

From that junction, you will have just 1/8th mile to go to reach the 1,567-foot summit of Monserate Mountain. Now enjoy the rewards of your efforts with some nice views of northern San Diego county. Off to the northwest, you will be able to see Red Mountain, with the Santa Anas beyond that. To the east are the Agua Tibia Mountains, which rise to 5,077 feet at Eagle Crag.

Looking to the northwest above the clouds
Monserate Summit view looking southwest
Monserate Summit Benchmark
Monserate Mountain Summit

Once you are done, return back down the spur trail to the junction.

On the loop route and the climb back to the junction

If you are doing the hike as an out-and-back, stay to the right and just retrace your route up. If you are doing the full loop, stay left and follow the ridge trail southward. This will take you toward the water tank, as well as offer up some nice views along the way.

The trail will descend down a flight of wooden stairs toward the water tank. After passing through a gate at the end of the Ridge Trail, you will find yourself on the paved service road for the water tank. Continue heading south until you come to another junction. When you reach the road, Pala Mesa Mountain Drive, head to the right and pass through a white gate marked with a Monserate Mountain Preserve sign. You will now work your way back to that first junction you encountered when you began your hike. Just beware, that this loop adds another 225 feet of elevation gain, as well as sometimes hiking on the pavement.

Once back at that first junction, you have a mere 3/4th mile to go to reach the trailhead. This is a popular trail, so expect to see fellow hikers and runners sharing the trail.

Montserate Mountain Trail Map & Elevation Profile

© OpenStreetMap contributors
Download file: montserate-loop.gpx

As of December 2021, you will not be able to do this hike as a loop as some construction work has closed it temporarily. Check with Fallbrook Land Conservancy for updates as to its reopening (currently planned for December 2022). In the interim, you can still hike Montserate Mountain as an out-and-back.

© OpenStreetMap contributors
Download file: montserate-out-and-back.gpx

Montserate Mountain Resources

  • Fallbrook Land Conservancy’s Montserate Mountain Preserve
  • Fallbrook weather forecast

Filed Under: Trail Guides Tagged With: 3-6 miles, dog-friendly, moderate, Monserate Mountain, Montserate Mountain Preserve, San Diego

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Chris G

About Chris Griffith

I am an avid peak bagger, sometimes backpacker, and former sea-kayaker living in San Diego.

In 2019, I became the third person to complete the San Diego 100 Peak Challenge. Not stopping with that accomplishment, I set my sights on the harder San Diego Sierra Club 100 Peak list, which I completed in 2021. In addition, I have conquered several Six-Pack of Peaks challenges (SoCal, San Diego, and Arizona-Winter). Beyond attempting the San Diego Sierra Club 100 Peak list a second time, I am looking forward to exploring new summits and new adventures across the southwest.

You can follow my hiking adventures at https://www.sdpeakbagger.com/

Comments

  1. Casey WCasey W says

    November 10, 2022 at 6:17 pm

    Did Monserate last Sunday (11/6/2022). The loop is still posted as closed. 🙁
    This trail is a great workout trail if you want to push your cardio a bit. Not a drive-to destination, but great for us locals.

    Reply
  2. Calico Maps says

    December 4, 2022 at 6:05 pm

    This is great little hike. A bit confusing to get to, but basically either north or southbound, you have to exit Hwy 15 a couple miles from the trail head and follow the frontage roads to arrive at Stewart Canyon Rd.

    Here is a link to the exact trailhead:
    https://osm.org/go/TPWduqSmh-?m=

    Try the San Diego County Trail Map by Calico Maps
    https://www.calicomaps.com/product/san-diego-county-trail-map/

    Reply

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