About this event
OC Parks' intermediate ride links Irvine Ranch Open Space with Limestone Canyon Nature Preserve on a demanding docent-led loop. The group starts at the gated Hicks Haul Road / Jeffrey staging area, warms up on the paved Hicks Haul climb, follows Loma Ridge east, drops singletrack toward Box Springs, pauses at The Sinks, then returns via Limestone Ridge, Augustine and Loma Ridge before coasting back to the start. The live registration detail rates the outing level 4: 16 miles with about 2,200 feet of elevation change in three and a half hours. Riders must be at least 18, arrive with their own trail-ready mountain bike and safety supplies, and be prepared for sustained climbing, singletrack descents and natural hazards. Advance online registration is mandatory, no walk-ups are accepted, and the organizer showed 5 of 15 spaces left during October 1 verification. Limestone Canyon is scheduled-access land; exact final directions are released after registration.
At a glance
Minimum age 18. Riders should be ready for a level-4, 16-mile outing with about 2,200 feet of climbing/descending, sustained paved climbing, steep or technical singletrack, an 8-10 mph average pace, minimal regrouping and expected trailside-repair knowledge.
open
Hicks Haul Road Staging Area - Limestone Canyon Nature Preserve
Check organizer
Event links
Official OC Parks event page
Live registration and remaining spaces
Create the required registration account
Limestone Canyon Nature Preserve
OC Parks Irvine Ranch Open Space
Hicks Haul Road staging area map
Official Limestone Canyon trail map
Official Hicks Haul staging directions
Official level-4 mountain-bike difficulty guide
Irvine Ranch Conservancy trail tips
Irvine Ranch Conservancy activity policies
County of Orange accessibility information
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