SANANTONIO

PARK

CARBON CANYON

REGIONAL PARK

CHINOHILLS

OPEN SPACE

OLINDARANCH PARK

RIO DELORO PARK

WESTERNHILLSPARK

OV

Orange County Transportation Authority

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Carbon

Canyon Creek

Carbon

Canyon

Lions

Canyon

Te legraphCanyon

Sonome

Canyon

Soque l

Canyon

Lilac Trl-3

Lilac Trl-1

Gilm

anTrl

-2

LilacTrl-5

LittleCanyon

Trl-1

Easy

Stre

etTrl

-1

South

Ridge

Trl-13

LilacTrl-2

Telegraph

CanyonTrl-8

Gilman Trl-3

South Ridge Trl-15

Sycamore

Trl-1Telegraph Canyon Trl-7

TelegraphCanyon

Trl-12South Ridge Trl-16

Telegraph Canyon Trl-11

North Ridge Trl-1

LilacTrl-4

WestTower

Trl-1

NorthRidgeTrl-7 North Ridge Trl-2

TelegraphCanyonTrl-13

Lilac Spur-2

DC-2, West Tower Trl-1.Issue: Some improvements made by easement holder, including drainage outlets and asphalt, areunsustainable.Recommendation: Work with easement holder to identify appropriate re-engineering / re-construction necessary for sustainability.

DC-1, Lilac Trl-2,3,4,5.Issue: Damaged Asphalt. Recommendation: Following consultation with easement holder, repair road surface and replace withsuitable road base to maintain vehicleaccess.

DC-3, North Ridge Trl-1.Issue: Trail closed due to landslide / slope failure.Road not necessary because vehicle access canbe maintained via the Telegraph Canyon Trl.Recommendation: Install a foot bridge overlandslide, and convert the road segment to a trail.

DC-4, Telegraph Canyon Trl, Corridor.Issue: Trail parallels Telegraph Creek and is frequentlyinundated and washed out in places. This trail is a controlled access road that crosses Telegraph Creek inmultiple locations. Crossing the creek in a vehicle isoften difficult and causes streambank erosion.Recommendation: Minor re-routes and re-engineer where needed and feasible to improvesustainability and maintain vehicle access.

DC-5, Lilac Spur-2.Issue: Trail provides no useful recreational connections,and access to the trail is potentially dangerous due to thelack of parking and the busy Carbon Canyon Road that isused to access it. Recommendation: Evaluate for potential conversionto "Admin Access Only" and closure to public use.

DC-6, Casino Ridge Trail Connection.Issue: The City of Yorba Linda has plans to develop and maintain a trail from the Casino Ridge StagingArea. The SoCal Gas utility road would provide an important link to connect Yorba Linda's Casino Ridge Trail to trails in Chino Hills State Park.Recommendation: In consultation with SoCalGas, reconstruct/re-engineer SoCalGas Utility road asnecessary for sustainability and add to the public trail system as multi-use (hike, bike, horse).

Diemer Plant

Quarter HorseStaging Area

Casino RidgeStaging Area

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1000 800

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800

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1400

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1200

1600

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Yorb

a Lind

a Fee

der

Lower Feeder

Plan Recommendations

CALIF STATEPARKS

INLAND EMPIREDISTRICT

ANDRECREATIONPLANNING

NOTES:Parcel boundaries are approximate and should not be consideredlegal descriptions. Maps are intended for study purposes only.

o0 0.1 0.2 0.3 0.4 0.5

Miles

1:30,688

Sources: Calif. Dept. of Parks & Recreation,Other Public Lands: GreenInfo, Inc.

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BaneCanyon /Rolling M

Ranch

Santa AnaRiver /

Coal Canyon

DiscoveryCenter /

TelegraphCanyon

Santa Ana River

Map Page Location

Scale

1 inch = 2,557 feet

Segment-Level Maintenance Recommendations

Reroute / Remove old alignmentRoad to Trail ConversionReconstruct / Re-engineerMonitorMaintain

DISCOVERY CENTER / TELEGRAPH CANYON AREA

Date: 12/29/2020

Chino Hills State ParkRoad and Trail Management Plan

Chino Hills State ParkMuseum/Visitor centerOther Public LandsOther Public Lands:Restricted Access

Intermittent StreamPerennial Stream / RiverWater PipelinesHighwayOther AgencyLocal Road

ERLOOKPARK