Tier 3 • 33" Tires / Armor
Open / Passable
VHF: RR-5 / 150.200 MHz
Foley Lake &Mt. Cheam Chipmunk Bench FSR Network
3D TERRAIN TELEMETRY MAP
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Center: 49.1640°N, -121.6820°W
KM Marker:
Elevation:
Slope Grade:
SCRUBBABLE ELEVATION & GRADE PROFILE (185m → 1390m • +1205m Gain)
Hover/Tap points to scrub 3D map marker
FSR & Technical Telemetry Specs
Category: 4X4Forest Service Road #
Chipmunk Creek / Foley FSR 7970
Resource Radio Freq
RR-5 / 150.200 MHz
Recommended Clearance
10"+ Minimum
Distance / Est Time
19.8 km • 1.6 hrs
Elevation Range
185m → 1390m
Seasonal Window
Late June – November
Pinch Points & Road Width Notes: 45+ deep deactivation waterbars above the Foley split; stock bumpers will drag without careful diagonal approach angles.
Staging & Tire Air-Down Pullout (Chilliwack)
GPS: 49.09200, -121.62100
Detailed Route Intelligence & Obstacles
Route Overview
The legendary Mount Cheam / Chipmunk Creek FSR climb out of the Chilliwack River Valley. Famous for its relentless sequence of deep cross-ditches that test approach/departure angles and suspension articulation.
Surfaces:
Waterbars
Loose Rock
Gravel
Crux Obstacles:
45+ Deep Cross-Ditches
Pinch Bridge at KM 8.5
Rec Sites & Camps:
⛺ Foley Lake Rec Site
⛺ Rapids Rec Site
⛺ Chipmunk Peninsula
GPS Waypoints, Staging & Hazard Pins (2)
air_down
49.0920, -121.6210
KM 0 Staging & Air-Down Pullout
Wide gravel staging shoulder. Switch VHF radio to RR-5 / 150.200 MHz and air down to 18–22 PSI.
hazard
49.1640, -121.6820
Crux / High Point Checkpoint
Check snowline, cross-ditches, and oncoming resource traffic before proceeding.
Community Road & Gate Condition Reports
Live snowline, washout, and logging updates from BC operators
Recent Field Dispatch Photos (Click to inspect & comment):
Maya Lin
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Rig: 2022 Tacoma TRD Off-Road (33" Wildpeaks)
Open / Passable
Nov 11, 2026
Drove Foley Lake &Mt. Cheam Chipmunk Bench FSR Network yesterday. Radio callouts on RR-5 / 150.200 MHz were active. Waterbars above mid-mountain are deep—definitely air down at the staging coordinates.
Surface: passable
❄ Snowline: 1350m
💧 Water/Mud: Hub-deep in shaded creek draws; bridges intact
🛡 Dead Man's Switch