3 miles
634 ft
-831 ft
Avg time
Trail Supporters, Builders & Maintainers of East Boundary Trail

East Boundary Trail Details

East Boundary begins with a moderate climb through thick vegetation. The microclimate changes soon to sandy chaparral, and about half way up this climb (mile 0.4), turn left at the Hazard Peak Trail junction to stay on East Boundary. The Barranca junction at mile 0.9 just below the top of this first climb - again, go straight (left) to remain on East Boundary. After this, a short drop leads to a steeper climb that brings the trail into an open grassy hillside. Several short ups and downs finish at a maintenance tool station - this is the top of the main descent (mile 2.0).

The trail now becomes more rocky and drops steeply and steadily back into chaparral over many large water bars. There is one somewhat sudden right hand corner (mile 2.3), so be alert and keep your speed in check. A long, gradually curving traverse ends at Islay Creek Road. East Boundary can ridden in the reverse direction, in which case the 1.6 mile climb from Islay Creek Road is relentlessly steep and well-rewarded with great views and an undulating descent to Barranca, Hazard Peak Trail, or Manzanita


DO NOT RIDE EAST BOUNDARY TRAIL past the Barranca intersection during or for many days after rain due to very expansive clay soils. This will destroy the trails tread and the goo does not wash off easily. In case of rain, ride Barranca instead.

Local Trail Association
More Stats for East Boundary Trail bike trail
  • Altitude change
    -198 ft
  • Altitude min
    382 ft
  • Altitude max
    1,002 ft
  • Altitude start
    579 ft
  • Altitude end
    382 ft
  • Grade max
  • Grade min
  • Distance climb
    1 miles
  • Distance down
    1 miles
  • Distance flat
    1,404 ft
  • Avg time
  • Avg reverse time
  • view trail stats
on Nov 15, 2018
Very Dry
Avg: 4 (3 votes)

view (293)
Layers winter
Trail Style
  • ?
Activity Type
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to east-boundary-trail-28351 trailhead (35.291650, -120.843420)
update trails status or condition

East Boundary Trail Trail Reports

Nov 15, 2018 @ 8:37pm
Nov 15, 2018
reporter Downhill section from bench to Islay Creek Rd was just cleared and opened way up. Good sight lines and no encroaching brush all the way to the bottom.
Nov 9, 2018 @ 5:00pm
Nov 9, 2018
Nov 9, 2018 @ 2:04pm
Nov 9, 2018
**CAUTION** CalFire crews are clearing brush corridor from top of downhill to Islay Creek Rd today. Dozens of chainsaw weilding crew members will...
Sep 29, 2018 @ 3:47pm
Sep 29, 2018
Brush Clearing Work Day - Cleared trail from bridge down to Islay Creek Road with the emphasis on the upper flats areas with the most significant...
Jul 15, 2018 @ 6:32pm
Jul 15, 2018
East Boundary trail received a much needed brushwork day, today, 7/15/18. We cleared brush and grasses from the trail from its intersection with...
view all reports »


more »
2 |
Oct 25, 2018 @ 5:56pm
Oct 25, 2018
East Boundary Trail, San Luis...
77 |
Mar 24, 2017 @ 7:25pm
Mar 24, 2017
East Boundary Trail, Los Osos
45 |
Mar 24, 2017 @ 7:25pm
Mar 24, 2017
East Boundary Trail, Los Osos
42 |
Mar 24, 2017 @ 7:24pm
Mar 24, 2017
East Boundary Trail, Los Osos

Routes with this trail

more »
10 miles
Figure 8 Route
10 miles
Hazard Peak from Horse Camp
6 miles
MDO Enduro Route
28 miles

Trail Events


1 Review & Comments

  • + 0
flag Jamp87 (May 6, 2017 at 7:42)
 Very over grown. Last parts of East Boundry has low visibility right now, some rutted areas

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