The Flora of the PCT
Section B. The San Ysidro and San Jacinto Mountains

RT Hawke, Shaun Hawke and Tom Chester

Fig. 1. Pictures to be added.

Introduction
Trail Sections With Links to the Plant Checklists

Introduction

See The Flora of the Pacific Crest Trail: Overview for an Introduction to these plant checklists.

Fig. 2. Trail Map for the PCT through the San Ysidro and San Jacinto Mountains, from USDA Forest Service Interactive Map. See a map with the approximate locations of segments B1 through B10.

The Section B trail continues with grasslands and oak woodland, before following Agua Caliente Creek up into the chaparral-covered hills of the San Ysidro Mountains. After crossing highway 74, the trail ascends into the San Jacinto Mountains, covered in a conifer forest. The trail reaches a high point of ~9000 feet before beginning the long descent winding down the dramatically-shear north side of the mountains. The section eventually descends to the Colorado Desert reaching its low elevation of ~1200 feet.

Trail Sections With Links to the Plant Checklists

The Section Description name will be linked to the plant checklists as they become available.

Table 1. Sections of the PCT in the San Ysidro and San Jacinto Mountains

Section DesignatorSection Description (linked to checklist)Length (miles)Elevations (feet)
MinMaxRange
B1Highway S22 (Barrel Springs) to Highway 79 (Warner Springs fire station)8.5  30403560510
B2Highway 79 (Warner Springs fire station), to Highway 79 (underpass second crossing)1.8  29003050150
B3Highway 79 (underpass second crossing) to Chihuahua Valley Road / Lost Valley Road

B3a Highway 79 to Lost Creek Road (7.0 miles#, 2940 to 4190 feet)
B3a Lost Creek Road to Chihuahua Valley Road / Lost Valley Road (8.5 miles#, 4190 to 5060 feet)

15.5  294052402300
B4Chihuahua Valley Road / Lost Valley Road- Tule Canyon Truck Trail10.0  358056002020
B5Tule Canyon Truck Trail- Highway 7415.0  333050601730
B6Highway 74 to Fobes Trail junction14.0*490060001100
B7Fobes Trail junction to Devils Slide Trail junction12.5+600081002100
B8Devils Slide Trail junction to Fuller Ridge parking area12.0^770090001300
B9Fuller Ridge parking area to Snow Creek Road17.5  120078006600
B10Snow Creek Road to Interstate 102.5  12001400200

# These subsegments require an addition 0.5 access miles
* This segment requires an additional 1.5 access miles
+ This segment requires an additional 4.0 access miles
^ This segment requires an additional 4.0 access miles

The elevation profile of segments B1 through B10 is shown in Fig. 3.

Fig. 3. The approximate elevation vs. distance for the PCT in the San Ysidro and San Jacinto Mountains from south to north.


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Copyright © 2014-2016 by RT Hawke, Shaun Hawke and Tom Chester.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
http://tchester.org/pct/b/index.html
Comments and feedback: Tom Chester
Updated 7 January 2016.