Can you ride an ATV in the Boulder Ranger District?

Yes. The MVUM designates ATV use on about 176.2 miles across 297 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 151.1 miles are open year-round and 59.7 miles are seasonal (typically open May 15 to Dec 10). Each vehicle class can have its own season — see the access matrix above.

Boulder Ranger District

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

210.8 miles total — 203 miles of roads and 7.8 miles of trails, across 438 designated routes on the Forest Service MVUM.

Arapaho and Roosevelt National Forests · Colorado · 210.8 mi of motorized routes · 438 routes · USFS EDW MVUM, retrieved 2026-07-11

The Boulder Ranger District in Arapaho and Roosevelt National Forests (Colorado) has 210.8 miles of motorized routes on the U.S. Forest Service Motor Vehicle Use Map — 203 miles of roads and 7.8 miles of trails across 438 designated routes. Vehicle access: ATV 176.2 mi · Motorcycle 181.7 mi. Seasonal routes generally open May 15 and close Dec 10. 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 Boulder 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 Arapaho and Roosevelt National Forests · Colorado

Total motorized miles: 210.8
Roads: 203 mi
Trails: 7.8 mi
Year-round miles: 151.1 mi
Seasonal miles: 59.7 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 Boulder Ranger District, from the Forest Service MVUM.
Vehicle class	Open miles	Routes	Season
Core off-highway (OHV)
ATV	176.2	297	Varies by route
Motorcycle / dirt bike	181.7	307	Varies by route
Other wheeled OHV	173.9	294	Varies by route
Wider OHV (over 50 inches)
4WD > 50"	176.2	297	Varies by route
2WD > 50"	173.9	294	Varies by route
Tracked OHV > 50"	173.9	294	Varies by route
Other OHV > 50"	173.9	294	Varies by route
Narrow OHV (under 50 inches)
Tracked OHV < 50"	173.9	294	Varies by route
Other OHV < 50"	173.9	294	Varies by route
E-bikes
E-bike Class 1	—	—	Not designated
E-bike Class 2	—	—	Not designated
E-bike Class 3	—	—	Not designated
Road-legal / licensed vehicles
Passenger vehicle	203	425	Varies by route
High-clearance vehicle	203	425	Varies by route
Truck	203	425	Varies by route
Bus	203	425	Varies by route
Motorhome	203	425	Varies by route

Seasons

Of the 210.8 motorized miles here, about 151.1 miles are open year-round and 59.7 miles are seasonal — the seasonal window generally runs from 05/15 to 12/10 (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 244 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.

Filter routes

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

ANCHOR MINE	✓	✓
APEX SPUR	✓	✓
AQUEDUCT SE	✓	✓
BALD MTN SPUR	✓	✓
BALTIMORE RIDGE	✓	✓
BENNETT ACCESS	✓	✓
BIG JOHN MOUNTAIN	✓	✓
BIG JOHN MOUNTAIN SPUR	✓	✓
BOULDER COUNTY 93	✓	✓
BOULDER WAGON	✓	✓
BOY SCOUT	✓	✓
BRICKEY SPUR	✓	✓
BUCKEYE MOUNTAIN	✓	✓
BUCKEYE MOUNTAIN SPUR	✓	✓
BUNCE SCHOOL	✓	✓
BUNCE SCHOOL SPUR	✓	✓
BUTTON ROCK B	✓	✓
CAMP DICK CG	✓	✓
CANNON MOUNTAIN	✓	✓
CANNON MOUNTAIN SPUR	✓	✓
CASTLE GULCH	✓	✓
CASTLE GULCH SPUR	✓	✓
CAVE CREEK	✓	✓
CAVE CREEK SPUR	✓	✓
CHIPMUNK GULCH	✓	✓
CHIPMUNK LOOP	✓	✓
CONEY CREEK	✓	✓
CONEY CREEK SPUR	✓	✓
CONIFER HILL	✓	✓
DAKOTA HILL	✓	✓
DAKOTA HILL SPUR	✓	✓
DELONDE SPUR	✓	✓
DRY ST. VRAIN	✓	✓
E. DAKOTA HILL	✓	✓
E. DAKOTA HILL SPUR	✓	✓
EAST POMEROY LOOP	✓	✓
EAST POMEROY SPUR	✓	✓
EAST UPHAM GULCH	✓	✓
FAIRBURN MTN	✓	✓
FAIRBURN SPUR	✓	✓
FAIRBURN SPURS	✓	✓
FAIRVIEW VIEW	✓	✓
FAREWELL GULCH	✓	✓
FAREWELL SPUR	✓	✓
FORSYTHE SPURS	✓	✓
FOURMILE CREEK	✓	✓
FOURMILE CREEK SPUR	✓	✓
GAMBLE GULCH	✓	✓
GAMBLE SPUR	✓	✓
GARNET SPUR	✓	✓
GILLESPIE GULCH	✓	✓
GOLD LAKE	✓	✓
GOLD LAKE SPUR	✓	✓
GOLDEN AGE	✓	✓
GORDON GULCH	✓	✓
GORDON LOOP	✓	✓
GORDON SPUR	✓	✓
GROSS RESERVOIR	✓	✓
GUINN MTN. SPUR	✓	✓
HEADACHE	✓	✓
HEADACHE SPUR	✓	✓
HESSIE TOWNSITE/TRAILHEAD	✓	✓
HICKS GULCH	✓	✓
INSPIRATION POINT	✓	✓
INSPIRATION POINT SPUR	✓	✓
IRONCLADS	✓	✓
JAMES CANYON DR NORTH	✓	✓
JAMES CANYON DR SOUTH	✓	✓
JENNY CREEK	✓	✓
JENNY LAKE	✓	✓
JENNY LIND - PERIGO	✓	✓
JUMBO MTN	✓	✓
JUMBO MTN SPUR	✓	✓
KINGSTON PEAK	✓	✓
KNOB	✓	✓
KNOB HILL	✓	✓
KNOB SPUR	✓	✓
LEFT HAND RESERVOIR	✓	✓
LEFTHAND	✓	✓
LOS LOGOS	✓	✓
LOWER BASIN	✓	✓
LOWER BASIN SPUR	✓	✓
LOWER RIDGE	✓	✓
MAMMOTH GULCH	✓	✓
MATCHLESS	✓	✓
MATCHLESS SOUTH	✓	✓
MATCHLESS SPUR	✓	✓
MICHIGAN HILL	✓	✓
MID ST VRAIN	✓	✓
MIDDLE ST. VRAIN TH	✓	✓
MILLER ROCK	✓	✓
MILLER ROCK SPUR	✓	✓
MOFFAT ROAD	✓	✓
MOON GULCH	✓	✓
MOON GULCH SPUR	✓	✓
MOUNT ALTO	✓	✓
MOUNT ALTO SPUR	✓	✓
N BOULDER FALLS	✓	✓
N OVERLAND MOUNTAIN SPUR	✓	✓
NEBRASKA HILL	✓	✓
NORTH BASIN	✓	✓
NORTH BOULDER FALLS	✓	✓
NORTH GILLESPIE	✓	✓
NORTH GILLESPIE SPUR	✓	✓
NUGGET	✓	✓
NUGGET SPUR	✓	✓
OBSERVATION SPUR	✓	✓
OBSERVATORY	✓	✓
OBSERVATORY SPUR	✓	✓
OLDE TOWNSITE SPUR	✓	✓
OXBOW	✓	✓
PEEWINK	✓	✓
PEEWINK SPUR	✓	✓
PENNSYLVANIA GULCH ROAD	✓	✓
PILE HILL	✓	✓
POMEROY MTN	✓	✓
PORPHYRY SPUR	✓	✓
ROCK CREEK	✓	✓
ROCK CREEK SPUR	✓	✓
ROLLINSVILLE	✓	✓
ROLLINSVILLE SPUR	✓	✓
S JUMBO SPURS	✓	✓
S. INSPIRATION POINT	✓	✓
S. TENNESSEE MTN.	✓	✓
S. TENNESSEE MTN. SPUR	✓	✓
SAWMILL GULCH CUTOFF	✓	✓
SAWMILL GULCH LOOP	✓	✓
SHERWOOD CREEK SPUR	✓	✓
SKYDALE NORTH	✓	✓
STARNES	✓	✓
SWITZERLAND NORTH	✓	✓
SWITZERLAND NORTH SPUR	✓	✓
SWITZERLAND TRAIL	✓	✓
TALL TIMBERS WEST	✓	✓
TAYLOR MOUNTAIN	✓	✓
TAYLOR MOUNTAIN SPUR	✓	✓
TAYLOR MOUNTIAN SPUR	✓	✓
TENNESSEE MOUNTAIN	✓	✓
TREE FARM	✓	✓
TUSCARORA CUTOFF	✓	✓
TWIN SISTERS	✓	✓
TWIN SISTERS SPUR	✓	✓
UPHAM GULCH	✓	✓
UPHAM SPUR	✓	✓
UPPER BASIN	✓	✓
UPPER CREEK	✓	✓
WALKER MTN	✓	✓
WINIGER RIDGE	✓	✓
WINIGER SPUR	✓	✓
BEAVER BOG	·	·
BOBCAT TRAIL	·	·
BOILING GULCH	·	·
BONANZA	·	·
BOULDER CANYON TURNOUT	·	·
BOULDER COUNTY 100J	·	·
BOULDER COUNTY 103.1	·	·
BOULDER COUNTY 124J	·	·
BOULDER COUNTY 124W	·	·
BOULDER COUNTY 126	·	·
BOULDER COUNTY 126N	·	·
BOULDER COUNTY 128N	·	·
BOULDER COUNTY 136N	·	·
BRAINARD LAKE	·	·
BRAINARD LAKE DAY USE	·	·
BRAINARD LAKE O/L	·	·
BRAINARD LAKE OVERSIZE PA	·	·
BUFFALO GULCH	·	·
BURNT MTN	·	·
CABIN	·	·
CABIN SPUR	·	·
COON TRACK	·	·
CROSS MINE	·	·
DIPPER	·	·
ELLSWORTH GULCH	·	·
EMERY ROAD	·	·
FRONTAGE RD OLIVE RIDGE	·	·
FYE'S PLACE	·	·
GILPIN	·	·
GILPIN GARDENS	·	·
GILPIN GARDENS SPUR	·	·
GILPIN SPUR	·	·
GLACIER VIEW OVERLOOK	·	·
GLEN MAWR RD	·	·
GOLDEN AGE HILL	·	·
GOLDEN AGE SPUR	·	·
GONZALES HOMESTEAD	·	·
GOOD FRIDAY	·	·
GROUSSMAN	·	·
JUMBO PG	·	·
KELLY DAHL CG	·	·
KELLY DAHL CG LOOP A	·	·
KELLY DAHL CG LOOP B	·	·
KELLY DAHL CG LOOP C	·	·
LEFTHAND TURNOUT	·	·
LONG LAKE TH	·	·
MANCHESTER LAKE	·	·
MEEKER PARK NORTH	·	·
MEEKER PARK OVERFLOW	·	·
MEEKER PARK PG	·	·
MEEKER PARK SH GROUP	·	·
MEEKER PARK SPUR A	·	·
MEEKER PARK SPUR B	·	·
MEEKER PARK SPUR C	·	·
MEEKER PARK SPUR D	·	·
MEEKER PARK SPUR E	·	·
MEEKER PARK SUMMER HOME GROUP	·	·
MITCHELL LAKE TH	·	·
MOOREHEAD GULCH SPUR	·	·
MOUNT ALTO PG	·	·
OLIVE LAKE	·	·
OLIVE LAKE SPURS	·	·
OLIVE RIDGE CG	·	·
PAWNEE CG LOOP A	·	·
PAWNEE CG LOOP B - TENT CAMP	·	·
PAWNEE CG LOOP C	·	·
PAWNEE CG LOOP D	·	·
PEACEFUL VALLEY CG SITES 1-6	·	·
PEACEFUL VALLEY PICNIC PARKING	·	·
POWERLINE ACCESS	·	·
PROPHYRY MTN	·	·
RAINBOW LAKES	·	·
RAINBOW LAKES CG LOOP A	·	·
RAINBOW LAKES CG LOOP B	·	·
RIVERSIDE DRIVE	·	·
S ST VRAIN PG 2 MP 29.5	·	·
S ST VRAIN PG 3 MP 28.9	·	·
S ST VRAIN PG 4 MP 27.1	·	·
S ST VRAIN PG 5 MP 25.6	·	·
S ST VRAIN PG 6 MP 25.5	·	·
S ST VRAIN PULLOFF MP 24.5	·	·
S ST VRAIN PULLOFF MP 25.2	·	·
SAWMILL GULCH SPUR	·	·
SCHLICK FARM SPUR	·	·
SEVERANCE LODGE - E	·	·
SH 72 TURNOUT	·	·
SHERWOOD FLATS SPUR	·	·
SKYDALE	·	·
SLAUGHTERHOUSE GULCH RD	·	·
SNEEZEWEED	·	·
SOURDOUGH TRAILHEAD	·	·
STAPP LAKES	·	·
TRAVIS GULCH	·	·
W. TRAVIS GULCH	·	·
WEST MAGNOLIA	·	·

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 Arapaho and Roosevelt National Forests →

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
Clear Creek Ranger District	Arapaho and Roosevelt National Forests, CO	175.4	34 km
Sulphur Ranger District	Arapaho and Roosevelt National Forests, CO	444.1	39 km
Dillon Ranger District	White River National Forest, CO	163.8	67 km
Canyon Lakes Ranger District	Arapaho and Roosevelt National Forests, CO	1,742.1	81 km
South Platte Ranger District	Pike and San Isabel National Forests, CO	365.5	85 km
Parks Ranger District	Medicine Bow-Routt National Forest, CO	548.5	89 km

Frequently asked questions

Can you ride an ATV in the Boulder Ranger District?: Yes. The MVUM designates ATV use on about 176.2 miles across 297 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 Boulder Ranger District?: 210.8 miles total — 203 miles of roads and 7.8 miles of trails, across 438 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 151.1 miles are open year-round and 59.7 miles are seasonal (typically open May 15 to Dec 10). Each vehicle class can have its own season — see the access matrix above.

More in Colorado

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