Can you ride an ATV in the Grindstone Ranger District?

Yes. The MVUM designates ATV use on about 1,013.9 miles across 747 routes here (varies by route). Confirm on the district's official Motor Vehicle Use Map before you ride.

Is this the official Motor Vehicle Use Map?

No. This page is an informational, searchable view of the MVUM route data. It is not a legal document. The controlling document is the district's official MVUM — always carry and follow it.

Are the routes open year-round?

Partly. About 1,158.7 miles are open year-round and 49.5 miles are seasonal (typically open Apr 16 to Nov 14). Each vehicle class can have its own season — see the access matrix above.

Grindstone Ranger District

Q: How many miles of motorized routes are in the Grindstone Ranger District?

1,208.2 miles total — 1,061.2 miles of roads and 147 miles of trails, across 832 designated routes on the Forest Service MVUM.

Mendocino National Forest · California · 1,208.2 mi of motorized routes · 832 routes · USFS EDW MVUM, retrieved 2026-07-11

The Grindstone Ranger District in Mendocino National Forest (California) has 1,208.2 miles of motorized routes on the U.S. Forest Service Motor Vehicle Use Map — 1,061.2 miles of roads and 147 miles of trails across 832 designated routes. Vehicle access: ATV 1,013.9 mi · Motorcycle 1,023.5 mi · E-bike routes. Seasonal routes generally open Apr 16 and close Nov 14. Every route here is informational and derived from the MVUM data — it is not a legal document; carry and follow the district's official Motor Vehicle Use Map. Download the routes as GPX for your GPS or riding app.

Every designated motorized route in the Grindstone Ranger District, drawn from the MVUM geometry (simplified, not to scale, north up). The static map is an instant preview — open the interactive map to explore the routes on a USGS topographic or satellite basemap. Download the routes as GPX below.

Motorized routes Mendocino National Forest · California

Total motorized miles: 1,208.2
Roads: 1,061.2 mi
Trails: 147 mi
Year-round miles: 1,158.7 mi
Seasonal miles: 49.5 mi

Vehicle access

What the MVUM designates for each vehicle class in this district — open miles, route count and season. A blank designation means the class is not designated here; it is shown as such, never guessed. ATV, motorcycle and e-bike classes are highlighted.

Per-vehicle-class access in the Grindstone Ranger District, from the Forest Service MVUM.
Vehicle class	Open miles	Routes	Season
Core off-highway (OHV)
ATV	1,013.9	747	Varies by route
Motorcycle / dirt bike	1,023.5	763	Varies by route
Other wheeled OHV	1,013.9	747	Varies by route
Wider OHV (over 50 inches)
4WD > 50"	933.6	685	Varies by route
2WD > 50"	933.6	685	Varies by route
Tracked OHV > 50"	933.6	685	Varies by route
Other OHV > 50"	933.6	685	Varies by route
Narrow OHV (under 50 inches)
Tracked OHV < 50"	1,013.9	747	Varies by route
Other OHV < 50"	1,013.9	747	Varies by route
E-bikes
E-bike Class 1	0	108	Varies by route
E-bike Class 2	0	108	Varies by route
E-bike Class 3	0	108	Varies by route
Road-legal / licensed vehicles
Passenger vehicle	1,118.4	754	Varies by route
High-clearance vehicle	1,118.4	754	Varies by route
Truck	1,118.4	754	Varies by route
Bus	1,118.4	754	Varies by route
Motorhome	1,118.4	754	Varies by route

Seasons

Of the 1,208.2 motorized miles here, about 1,158.7 miles are open year-round and 49.5 miles are seasonal — the seasonal window generally runs from 04/16 to 11/14 (MM/DD). Each vehicle class can carry its own season; see the access matrix above, and always confirm current status on the official Motor Vehicle Use Map.

Download the routes (GPX)

Load these into your GPS unit or riding app (onX, Gaia, Avenza and most handhelds read GPX).

Download all routes (GPX) ATV-legal routes only (GPX)

Named routes

Show the 675 named routes in this district

Named routes on the MVUM and whether ATV and motorcycle use is designated on each. This is a per-district reference, not a separate page per route. Use the filter to find a route. Showing the first 400; the GPX download above carries all 675.

Filter routes

Named routes in the Grindstone Ranger District with ATV / motorcycle designations.

69 CONNECTION	✓	✓
ACCESS	✓	✓
ACE	✓	✓
ALDER	✓	✓
ALDER CREEK	✓	✓
ALDER ORCHARD	✓	✓
ALDER SPRING EAST	✓	✓
ALDER SPRINGS	✓	✓
ALDER SPRINGS W.C.	✓	✓
ALL TOP WEST	✓	✓
AMY'S ARRIVED	✓	✓
ANNAS SPOT	✓	✓
ANTHONY PEAK	✓	✓
AUK AUK/TROUGH	✓	✓
BALL MOUNTAIN	✓	✓
BALL MOUNTAIN SPUR C	✓	✓
BALL MTN SHORTCUT	✓	✓
BALL MTN. SPUR E	✓	✓
BALL ROCK RIDGE	✓	✓
BALL ROCK SOUTH	✓	✓
BALL ROCK SUMMIT	✓	✓
BALL ROCK TIE	✓	✓
BARB RIDGE	✓	✓
BARB RIDGE SPUR A	✓	✓
BEAR WALLOW RIDGE	✓	✓
BEAR WALLOW SOUTH	✓	✓
BEAR WALLOW SOUTH SPUR A	✓	✓
BEAR WALLOW SPRINGS	✓	✓
BEAR WALLOW SPRINGS SPUR A	✓	✓
BETHANYS BREAK	✓	✓
BIG FLAT	✓	✓
BIG FLAT SPUR A	✓	✓
BIG ROCK	·	✓
BIG STUMP	✓	✓
BIG STUMP CAMP	✓	✓
BIG STUMP SPUR A	✓	✓
BIGELOW	✓	✓
BIGELOW TIE	✓	✓
BLACK BUTTE	✓	✓
BLACK BUTTE HOMES	✓	✓
BLACK BUTTE SPUR A	✓	✓
BLACK DIAMOND	✓	✓
BLACK DIAMOND BM	✓	✓
BLACK OAK CUTOFF	✓	✓
BLACKJACK	✓	✓
BLACKJACK CAMP	✓	✓
BLOODY PROJECT ROAD	✓	✓
BLOODY SALE ROAD	✓	✓
BOARD CAMP RIDGE	✓	✓
BOARD CREEK	✓	✓
BOARD RIDGE	✓	✓
BOARD RIDGE SPUR R	✓	✓
BOARD TREE TANKER FILL	✓	✓
BOARDTREE C.G.	✓	✓
BOARDTREE SPRING	✓	✓
BODKIN CABIN	✓	✓
BODKIN CAMP	✓	✓
BONNIE VIEW	✓	✓
BOUNDARY	✓	✓
BOWERY FLAT	✓	✓
BOWERY FLAT CAMP	✓	✓
BOWMAN JEEP	✓	✓
BOWMAN RIDGE	✓	✓
BRAIN EAGLE	✓	✓
BRISCO CUTOFF	✓	✓
BROWNELL	✓	✓
BROWNELL SPUR	✓	✓
BROWNS CAMP	✓	✓
BROWNS CREEK	✓	✓
BRUCES FOLEY	✓	✓
BRUSH	✓	✓
BRUSHY CAMP	✓	✓
BRUSHY CAMP RIDGE	✓	✓
BRUSHY RIDGE	✓	✓
BUCK POINT 4WD	✓	✓
BURMA ROAD	✓	✓
BURMA ROAD SPUR B	✓	✓
CATTLE RIDGE	✓	✓
CATTLE RIDGE POINT	✓	✓
CEDAR CAMP C.G.	✓	✓
CEDAR GROVE ROUTE	✓	✓
CEDAR NORTH	✓	✓
CEDAR RIDGE	✓	✓
CEDAR RIDGE SPUR F	✓	✓
CEDAR RIDGE SPUR G	✓	✓
CHAMPAGNE	✓	✓
CHAMPAGNE SPRINGS	✓	✓
CILEY ROAD	✓	✓
CLEEK	✓	✓
CLIFTON	✓	✓
CLOVER CREEK	✓	✓
COLD CREEK	✓	✓
COLD CREEK SPUR B	✓	✓
COLD CREEK WEST	✓	✓
COLD CREEK WEST SPUR F	✓	✓
COLD SPRING WATER HOLE	✓	✓
COLD SPRINGS RIDGE	✓	✓
COMMANDER LOOP	✓	✓
CONTOUR	✓	✓
COPPER	✓	✓
COPPER CITY	✓	✓
COPPER CITY TIE	✓	✓
COPPER SMELTER	✓	✓
COPPER SMELTER SPUR A	✓	✓
CORRIDOR CONNECTOR	✓	✓
COUGER CREEK	✓	✓
COW CAMP	✓	✓
CRACKER	✓	✓
CRACKER BOX	✓	✓
CRACKER BOX RIDGE	✓	✓
CRACKER SPUR A	✓	✓
CRACKERBOX SPUR A	✓	✓
CRACKERBOX SPUR B	✓	✓
CRACKERBOX SPUR C	✓	✓
CRACKERBOX SPUR D	✓	✓
CREST SPUR	✓	✓
DARK CANYON CREEK	✓	✓
DARK CANYON RIM	✓	✓
DAVE AND ELLEN	✓	✓
DAVE'S DILEMMA	✓	✓
DAVES RIDGE	✓	✓
DAVES RIDGE SPUR A	✓	✓
DAVES SPRING	✓	✓
DEAD MULE	✓	✓
DEER FLAT SPRINGS	✓	✓
DEL HARLESON	✓	✓
DERBY RIDGE	✓	✓
DOE PEAK	✓	✓
DOG	✓	✓
DOGTOWN	✓	✓
DOLL CAMP	✓	✓
DOLL RIDGE	✓	✓
DOLL RIDGE SPUR E	✓	✓
DOLL SOUTH	✓	✓
DRY LAKE	✓	✓
DRY POND	✓	✓
EAGLE ROCK	✓	✓
EAST 4WD	✓	✓
EAST ARM	✓	✓
EAST BOWMAN RIDGE	✓	✓
EAST GOVERNMENT CR	✓	✓
EAST LETTS	✓	✓
EAST MILL CREEK	✓	✓
EAST PINE KOP	✓	✓
EAST POCKET RIDGE	✓	✓
EAST TIMBER RIDGE	✓	✓
EHORN MINE	✓	✓
EL MANZANO	✓	✓
ELDER CREEK	✓	✓
ELK LAKE	✓	✓
ELK RIDGE	✓	✓
ELK RIDGE NORTH	✓	✓
ELLEN SPRINGS	✓	✓
ESTELL CREEK	✓	✓
ESTELL-SHEEP CREEK	✓	✓
ESTELL-SHEEP CREEK SPUR B	✓	✓
ESTELL-SHEEP CREEK SPUR C	✓	✓
ESTELL-SHEEP CREEK SPUR D	✓	✓
FELKNER	✓	✓
FELKNER HILL	✓	✓
FELKNER HILL TIE	✓	✓
FELKNER RIDGE NORTH	✓	✓
FENCE LINE	✓	✓
FISH CREEK SPUR A	✓	✓
FLOWERS RIDGE	✓	✓
FLOWERS RIDGE SPUR	✓	✓
FORKS	✓	✓
FORKS RESERVOIR	✓	✓
FORKS RIDGE	✓	✓
FORKS RIDGE NORTH	✓	✓
FORKS RIDGE SOUTH	✓	✓
FOUTS SPRINGS-HOUGH SPRINGS	✓	✓
FOUTS-BEAR CREEK	✓	✓
FOUTS-TROUGH	✓	✓
FRENCH	✓	✓
FRESHWATER HELIPORT	✓	✓
GAP	✓	✓
GARNETT CAMP	✓	✓
GARNETT CAMP SPUR C	✓	✓
GIBSON JEEP	✓	✓
GIBSON RIDGE	✓	✓
GIBSON RIDGE SPUR D	✓	✓
GILLMORE RIDGE	✓	✓
GILMORE RIDGE	✓	✓
GOAT HILL	✓	✓
GOVERNMENT CAMP	✓	✓
GOVERNMENT CAMP SPUR A	✓	✓
GRASSY PATCH	✓	✓
GRAU	✓	✓
GREEN FLAT	✓	✓
GREEN FLAT CAMP	✓	✓
GREEN PINE	✓	✓
GREEN SPRINGS	✓	✓
GRID	✓	✓
GRIND VIEW	✓	✓
GRINDSTONE CANYON	✓	✓
GRINDSTONE CREEK	✓	✓
GRINDSTONE RIM	✓	✓
GRINDSTONE TRAILHEAD	✓	✓
GRINDSTONE WATER	✓	✓
HALL	✓	✓
HALL SPUR A	✓	✓
HANKS HANGOUT	✓	✓
HARD SPRINGS	✓	✓
HARDIN HOLE RIDGE	✓	✓
HARDRUM	✓	✓
HARELSON WEST	✓	✓
HARLEN	✓	✓
HARTANS CORRAL	✓	✓
HARVEY SPRINGS	✓	✓
HAYPATCH STATION	✓	✓
HECK CAMP	✓	✓
HEIFER RIDGE SPUR A	✓	✓
HELENS HAUNT	✓	✓
HENDERSON CANYON	✓	✓
HENDERSON CANYON SPUR A	✓	✓
HEY ROAD	✓	✓
HILLTOP	✓	✓
HILLTOP SPUR B	✓	✓
HOKEY	✓	✓
HOKEY CUTOFF	✓	✓
HOKEY HARVEY	✓	✓
HOKEY POKEY	✓	✓
HOKEY POKEY RIDGE	✓	✓
HOKEY POKEY RIDGE SPUR B	✓	✓
HOKEY POKEY WEST	✓	✓
HOKEY-HARDIN	✓	✓
HORNET NEST GROVE	✓	✓
HORNET TROUGH	✓	✓
HORNETS NEST RIDGE	✓	✓
HORNETS NEST SPRING	✓	✓
HORSE HOLLOW	✓	✓
HORSE PACKER	✓	✓
HORSE TROUGH	✓	✓
HORSE TROUGH RIM	✓	✓
HORSE TROUGH SPUR B	✓	✓
HOT POCKETS	✓	✓
HOT POCKETS SPUR A	✓	✓
HOUGH	✓	✓
HOUGHTON	✓	✓
HOUGHTON PLACE	✓	✓
HOUGHTON RIDGE	✓	✓
HULL 4WD	✓	✓
HULL ROAD	✓	✓
HUM DINGER	✓	✓
HUNTER CREEK	✓	✓
HUNTER CREEK SPUR A	✓	✓
HUNTER RIDGE	✓	✓
HUNTER RIDGE NORTH	✓	✓
HUNTER RIDGE NORTH SPUR A	✓	✓
HUNTER RIDGE SPUR A	✓	✓
HUNTER RIDGE SPUR C	✓	✓
HUNTER RIDGE SPUR D	✓	✓
HUNTER RIDGE SPUR E	✓	✓
HUNTER RIDGE SPUR F	✓	✓
ICE SPRINGS	✓	✓
ICE SPRINGS SPUR A	✓	✓
ICE SPRINGS SPUR B	✓	✓
IVORY MILL ADM	✓	✓
IVORY MILL SPUR C	✓	✓
JENKS	✓	✓
JENKS SPUR A	✓	✓
JENKS TIE	✓	✓
JENKS VIEW	✓	✓
JERUSALEM SPRING WATER	✓	✓
JERUSELEM SPRING	✓	✓
JOLLY	✓	✓
JOLLY SPUR A	✓	✓
JUMBO CEDAR	✓	✓
JUMBO SPRINGS	✓	✓
KANAKA GLADE	✓	✓
KEERAN CAMP	✓	✓
KEERAN SOUTH	✓	✓
KEERAN SOUTH SPUR A	✓	✓
KENNY CAMP	✓	✓
KENNY RIDGE	✓	✓
KERN POINT	✓	✓
KERN POINT SPUR A	✓	✓
KERN POINT SPUR B	✓	✓
KILGORE 4WD	✓	✓
KILL DRY	✓	✓
KNEECAMP	✓	✓
KNEECAP	✓	✓
KNEECAP SPUR	✓	✓
L.P. ACCESS ROAD	✓	✓
LADY BUG	✓	✓
LADYBUG SPUR A	✓	✓
LADYBUG SPUR B	✓	✓
LANTZ RIDGE	✓	✓
LANTZ RIDGE SPUR C	✓	✓
LANTZ RIDGE SPUR D	✓	✓
LARK	✓	✓
LAST JOLLY	✓	✓
LEAPING GNOME	✓	✓
LEFT	✓	✓
LETTS OVERLOOK	✓	✓
LETTS PARALLEL	✓	✓
LETTS RIDGE	✓	✓
LETTS RIDGE SPUR A	✓	✓
LETTS VALLEY	✓	✓
LETTS VALLEY SPUR A	✓	✓
LETTS Y TRAIL	✓	✓
LETTS-PINE	·	✓
LIGHTNING SPRINGS	✓	✓
LINGER LONGER	✓	✓
LITTLE AUGER	✓	✓
LITTLE STONY DAY USE SPUR	✓	✓
LITTLE STONY PARALLEL	✓	✓
LITTLE SULLIVAN	✓	✓
LITTLE SULLIVAN RIDGE	✓	✓
LOG CAMP	✓	✓
LOG SPRINGS ADM	✓	✓
LOG SPRINGS CREEK NORTH	✓	✓
LOG SPRINGS CREEK SOUTH	✓	✓
LOGAN BASIN	✓	✓
LONE STAR	✓	✓
LONE STAR SPUR A	✓	✓
LONG POINT	✓	✓
LONG SIDE	✓	✓
LOOP #1	✓	✓
LOOP #2	·	✓
LOST CAMP	✓	✓
LOST SPRING	✓	✓
LOVE LADY	✓	✓
LOVELADY RIDGE	✓	✓
LOWER ALLTOP	✓	✓
LOWER BRISCO	✓	✓
LOWER FLOOD CREEK	✓	✓
LOWER FORKS SPUR	✓	✓
LOWER HARDEN RIDGE	✓	✓
LOWER HORSE	✓	✓
LOWER HORSE TROUGH	✓	✓
LOWER JUMBO SPRINGS	✓	✓
LOWER KILL DRY	✓	✓
LOWER LETTS	✓	✓
LOWER MIDDLE RIDGE	✓	✓
LOWER MIDDLE RIDGE SPUR D	✓	✓
LOWER SHEPHARD RIDGE	✓	✓
LOWER SOUTH RIDGE	✓	✓
LOWER WALLOW	✓	✓
MAD CREEK	✓	✓
MANZANITA	✓	✓
MANZANITA SPRING	✓	✓
MARKHAM RIDGE	✓	✓
MARKHAM SPUR	✓	✓
MASTERSON GROUP CAMP	✓	✓
MEADOW	✓	✓
MEYERS PLACE	✓	✓
MIDDLE BEE	✓	✓
MIDDLE CREEK	✓	✓
MIDDLE CREEK SPUR A	✓	✓
MIDDLE NYE	✓	✓
MIDDLE RIDGE	✓	✓
MIDDLE ZUMWALT	✓	✓
MILL CREEK PARALLEL	✓	✓
MILL CREEK TIE	✓	✓
MILL VALLEY SPUR C	✓	✓
MINE CAMP	✓	✓
MINER #1	✓	✓
MINER #2	✓	✓
MINER #3	✓	✓
MINER GULCH	✓	✓
MINER RIDGE	✓	✓
MINER SPUR B	✓	✓
MINER SPUR C	✓	✓
MORRIS RIDGE	✓	✓
MUD FLAT	✓	✓
MUD FLAT CAMP	✓	✓
MULE SPIKE	✓	✓
MULE TIE	✓	✓
NEW MINER	✓	✓
NEW MINER SPUR A	✓	✓
NOEL PVT. 2	✓	✓
NOEL SPRING RIDGE	✓	✓
NOEL SPRINGS	✓	✓
NORTH ARM	✓	✓
NORTH BOWERY LOOP	✓	✓
NORTH DERBY	✓	✓
NORTH DOLL	✓	✓
NORTH FORK CROSSING	✓	✓
NORTH FORK SPUR D	✓	✓
NORTH FRENCH	✓	✓
NORTH HARDIN	✓	✓
NORTH MIDDLE RIDGE	✓	✓
NORTH TROUGH	✓	✓
NORTH TROUGH SPUR A	✓	✓
NORTH WESCOTT	✓	✓
NOSBIG	✓	✓
NYE SPRINGS	✓	✓
OAK	✓	✓
OCEAN VIEW	✓	✓
OKEY ROAK	✓	✓
OLD FELKNER	✓	✓
OLD LETTS	✓	✓
OLD LETTS SPUR C	✓	✓
OLD MILL	✓	✓
ONE BEE CAMP	✓	✓
OPEN RIDGE SPUR C	✓	✓
OPEN RIDGE-BLACK DIAMOND	✓	✓
OVENLID	✓	✓

Data: U.S. Forest Service, Enterprise Data Warehouse (EDW) Motor Vehicle Use Map — Roads (layer 1) and Trails (layer 2), retrieved 2026-07-11. A work of the U.S. Government, public domain (17 U.S.C. §105). State assignment: U.S. Census Bureau TIGERweb state boundaries.

Important — informational, not a legal document

This page is a searchable summary of the Forest Service Motor Vehicle Use Map data — it is not the official MVUM and not a legal document. Route designations, closures and conditions change. The controlling document is the district's official Motor Vehicle Use Map: carry it and follow posted signs when you ride.

Official Motor Vehicle Use Map for Mendocino National Forest →

Data vintage: USFS EDW MVUM, retrieved 2026-07-11.

Nearby districts

The six nearest ranger districts by centroid distance (great-circle) — cross-forest and cross-state neighbours included — for planning a wider trip.

Nearby ranger districts, with total motorized miles and distance.
District	Forest	Total miles	Distance
Covelo Ranger District	Mendocino National Forest, CA	295.6	27 km
Upper Lake Ranger District	Mendocino National Forest, CA	471.2	32 km
Yolla Bolla Ranger District	Shasta-Trinity National Forest, CA	601.3	78 km
Mad River Ranger District	Six Rivers National Forest, CA	0.1	80 km
Hayfork Ranger District	Shasta-Trinity National Forest, CA	682.1	106 km
Almanor Ranger District	Lassen National Forest, CA	1,056.7	133 km

Frequently asked questions

Can you ride an ATV in the Grindstone Ranger District?: Yes. The MVUM designates ATV use on about 1,013.9 miles across 747 routes here (varies by route). Confirm on the district's official Motor Vehicle Use Map before you ride.
How many miles of motorized routes are in the Grindstone Ranger District?: 1,208.2 miles total — 1,061.2 miles of roads and 147 miles of trails, across 832 designated routes on the Forest Service MVUM.
Is this the official Motor Vehicle Use Map?: No. This page is an informational, searchable view of the MVUM route data. It is not a legal document. The controlling document is the district's official MVUM — always carry and follow it.
Are the routes open year-round?: Partly. About 1,158.7 miles are open year-round and 49.5 miles are seasonal (typically open Apr 16 to Nov 14). Each vehicle class can have its own season — see the access matrix above.

More in California

See every ranger district in Mendocino National Forest, browse all California national-forest routes, or read the methodology behind these figures. New to MVUMs? Start with what a Motor Vehicle Use Map is.