Google Map

USA :: San Diego ::

Laguna - Monument Peak

GPS Track

Panoramic view north from Monument Peak.  Foreground ridge over Hayes Peak (left of center) can be traversed without much problem; Garnet Peak behind, center.  Anza Borrego Desert Park center right

Trip Summary

January 18, 2024

 

Monument Peak is a bump along Mount Laguna Ridgeline that drops to Anza Borrego Desert on east side. It is included in Sierra Club 100 peak list. Hike itself is fairly easy; if you just wanted to run up Monument and back it can be done in ~1.5hrs (return) from Big Laguna Trailhead on Sunrise Highway. Wanting to extend a day, after poking on maps and some Internet sites I devised a loop that allowed longer time enjoying iconic Pacific Crest Trail followed by off-trail ridgeline traverse north across Hayes peak.  Stats in Abstract are given for this variation.

 

After parking at Desert View past Laguna Village (Fee, or Inter-Agency Pass required), drop east past picnic benches and intersect PCT;  turn left.  PCT is then followed for about an hour to Monument Peak junction,  crossing 2 service roads and Big Laguna Trail along the way.  Monument trail is slightly overgrown with Manzanita trees (see Gallery) to summit area that has NASA Laser Tuning / Research facility. This sounds quite fancy, but in reality is just fenced area with bunch of containers, while summit itself has bunch of telecom towers.   On my Jan '24 visit there was also visitor register tucked in small cairn at highest point.  Optional extension on return follows Laguna ridgeline north across Hayes Peak.  Faint trail disappears just past summit cairn, but PCT can be spotted in the valley below.  This off-trail descent is not difficult but hiking poles with help.  360 Panoramic Views are outstanding to say the least.   Upon reaching PCT (Waypoint "4 - PCT", GPS download top of Page) turn left and hike back to Desert View. This is recommended trip with huge scenic reward for very modest effort.

 

Gallery

Desert View Desert View  ~1km north of Mt. Laguna Recreation Area.  PCT runs just below the picnic area
 
Laguna Sign Laguna Center Facilities Sign as PCT crosses side road near Desert View
 
Laguna Observatory White Dome of Laguna Observatory peek-a-boo as PCT traverses semi open slopes heading north
 
Grassy Hillside Pleasant Hiking on open hillside below Laguna Ridge
 
PCT Sign Standard PCT sign as trail crosses second side road ~10min before Big Laguna junction
 
Big Laguna Junction Looking back at PCT / Big Laguna junction - note distant observatory.
 
Monument Junction Monument Peak turnoff 10-15min  past Big Laguna junction as PCT makes sharp left turn.  Note sign; if in doubt use GPS track download from Top of Page (Waypoint "2 - Monument Junction")
 
Manzanita Tunnel Short mild bushwhack up Manzanita "forest".  Long sleeves help here
 
Monument Trail Trail opening up and curling gently towards Monument Service Road
 
Monument Service Road Final push to the summit is on paved Service Road
 
Laser Target Laser Target Warning above NASA research facility;  you can read here more about the Project.  Laguna Ridge with distant Observatory right of upper center
 
Monument Register On my '24 visit Summit (just past communication towers) had - somewhat unexpected - Register
 
Anza Borrego Panorama Panoramic View East across Anza Borrego Desert State park from Monument Peak
 
Hayes Ridge Optional loop return via Hayes ridge starts just below NASA facility.  There is faint trail most of the way
 
Pacific Sunset Sun setting over San Diego county as Ridge route joins PCT just below Hayes Peak

 

 

Abstract

Overall Difficulty D2/3 Easy hiking on PCT.  Short Manzanita trees bushwhack on Monument Trail.  Some rocky/bushy parts on Hayes Ridge
Scenery Laguna Meadows and Peaks.  Anza Borrego Desert State Park.  Distant San Jacinto Mountain Range
Trail/Marking Very Good PCT well defined with signed junctions.  Monument turnoff not marked. Off trail for optional Hayes Ridge loop
Suggested Time 4hrs Desert View / Hayes Ridge.  2hrs or less if starting from Big Laguna and returning the same way
Elevation Start: 1825m (Desert View) Max: 1915m  Total: ~350m Round Trip: ~10km (Desert View - Hayes Ridge Loop)
Gear Day Hikers. Hiking pole helpful for stability on rough parts
Water No water source.  Carry 1L, more in summer
Snow Factor Mount Laguna can receive substantial snowfall after winter snow storms.  It usually melts fast but might present slippery conditions
Dog Friendly Yes Dogs must be kept on leash throughout Mount Laguna Recreation Area / Cleveland National Forest

 

Laguna - Monument Peak GAIA MapLaguna - Monument Peak GAIA Map

Laguna - Monument Peak Elevation ProfileLaguna - Monument Peak Elevation Profile