Boulder Ranger District - Arapaho / Roosevelt National Forest
Open 4WD Roads
Road Name Forest Service
Road Name
FR # Difficulty Miles Status
    316   0.50  
Baltimore Ridge Baltimore Ridge 416 Easy 4 0.70  
Bear Gulch Bear Gulch 235
240
Easy 4 1.42
0.52
Includes 235.1B (signed)
Includes 240.1A
Beaver Reservoir Beaver Bog 507.1E Easy 1 1.10 Seasonal Jun 15 to Nov 30
Buckeye Mountain Buckeye Mountain 512   1.53 Includes 512.1A
Buffalo Gulch Buffalo Gulch 283 Easy 1 0.58 Access? Crosses private
Bunce School Road Bunce School Road
Bennett Access
105 Easy 3 5.00 Includes 115.1A, 213.1
Bunce School Cutoff Cave Creek 217 Easy 3 1.97 Includes 217.1A,.1C,.1D
Button Rock Loop Button Rock B 118.1 Easy 4 0.76 Seasonal Jun 15 to Nov 30
Includes 118.3 (part)
Caribou Caribou
Eldora
Caribou Park
116J
128J.3
505
Moderate 5 2.00
0.75
11.50
Seasonal Jun 15 to Nov 30
Includes 116J.1, 505.1C,.2A(signed)
Castle Gulch Castle Gulch 287 Easy 3 2.28 Includes 287A(signed)
Castle Gulch East Golden Age 288 Moderate 6 1.50 Includes 288A,B,D(signed)
Castle Gulch Ridge Castle Gulch Spur 287B Moderate 6 1.27 (signed)
Chipmunk Gulch Chipmunk Gulch 376 Easy 2 0.42  
Coney Flats Coney Flats 507 Moderate 6 6.54 Seasonal Jun 15 to Nov 30
Includes 507.1A-.1D(signed)
Conifer Hill Conifer Hill 185 Easy 1 2.37  
Dakota Hill Dakota Hill 412 Easy 2 3.11 Includes 412.1E,.1K,.1L,.2
Delonde Delonde Spur 496   0.67  
Dry St. Vrain Big John Mountain
Dry St. Vrain
186
200.1
Easy 2 3.46
0.24
Includes 186.1C,.1D,.1I

Emmit Mine Emmit Mine 293 Easy 3 1.01 Includes 293.1B
Farewell Gulch Farewell Gulch 237 Easy 2 3.85 Includes 237.1A-F,.1H-I(signed)
Fairview View Fairview View 286H Easy 2 0.50 (signed)
Fireman Hill Upper Ridge 286D Moderate 7 2.00 (signed)
Four Mile Gulch Ruby Gulch 328 Easy 1 2.68 Includes 328.1A-.1F(signed)
Gamble Gulch Gamble Gulch 411   2.10 Includes 411.1A,.2A,.2C
Gold Lake Gold Lake 372 Easy 3 2.83 Includes 372.1B,.1E,.1F
Golden Age Hill Golden Age 284 Easy 3 5.22 Includes 284.1A,.1D,.1H,.1I
Gordon Gulch Garnet Spur
Upham Gulch
Gordon Gulch
Matchless
226
228
233
314
Easy 1 0.84
4.17
3.24
3.21

Includes 228.1A-.1D
Includes 233.1A-.1D,.1F(signed)
Includes 314.1A,.1B,.1D,.1E,.1G,.1H
Gross Reservoir Forsythe Spurs 68.2B Easy 2 0.30  
Inspiration Point Rocky Point 453 Easy 2 0.98 Includes 453.1A,.1B(signed)
Ironclads Ironclads 216 Moderate 6 2.78 Includes 216.1A(signed)
Jenny Creek Jenny Creek 502
808
Moderate 7 3.14
1.89
Includes 502.3A
808 (signed)
Jenny Lind / Perigo Jenny Lind / Perigo 413   5.54 Includes 413.1A
Johnny Park Johnny Park 118 Easy 3 5.49 Seasonal Jun 15 to Nov 30
Jumbo Mountain Jumbo Mountain 289 Easy 3 1.90 Includes 289.1A, 432.1B
Kingston Peak Kingston Peak 353 Moderate 5 4.00 Includes 187.1(signed)
Knob Knob 458   0.93 Includes 458.1A,.1B
Lefthand Canyon Lefthand 286 Moderate 6 3.91 (signed)
Lefthand Reservoir Lefthand Park Reservoir 232 Easy 1 1.79 Seasonal Jun 15 to Nov 15
Lefthand Stage Road Lefthand Spur 286B Easy 4 0.80 To be opened in Lefthand Travel Plan
Lump Gulch Fairburn Mountain
Skydale
409.1
410.1
  3.81
3.17
Includes 4.09.1A,.1G-.1I,.2D
Includes 410.1A
Mammoth Gulch Mammoth Gulch 176 Easy 3 3.19  
Middle St. Vrain Middle St. Vrain 114 Moderate 7 4.80 Seasonal Jun 15 to Nov 30(signed)
Miller Rock Miller Rock
Cannon Mountain
Headache
252
254
523
Difficult 8 5.00
2.38
4.36
Inlcudes 252.1A,.2A(signed)
Includes 254.1F(signed)
Includes 523.1B-.1D(signed)
Moon Gulch Moon Gulch 290 Moderate 5 2.87 Includes 290.1A (signed)
Mother Hill Lower Ridge 286C Difficult 8 0.67 (signed)
Mount Alto Mount Alto Spurs 456 Easy 4 1.40 Includes 456.1A-.1D(signed)
Nebraska Hill Nebraska Hill 183 Easy 2 0.76  
Nugget Hill Nugget 509 Easy 4 3.50 Includes 509.1B (signed)
Observatory Spurs Observatory 355 Easy 2 4.10 Seasonal May 15 to Nov 30
Includes 355.1A,.1C,.1D,.1E,.1G,.1K,.1U,.1V(signed)
Park Creek Upper Basin
North Basin
202
203
Easy 3 2.94
1.10
Seasonal May 15 to Nov 30
Includes 202.1A,.1C(signed)
203.1(signed)
Peewink Road Peewink Mountain 332 Easy 2 3.25 Seasonal
Includes 332.1A-D,.1F,.1G(signed)
Perigo E. Dakota Hill 417 Easy 2 1.37 Includes 417.1A
Phoenix Rollinsville
S. Tennessee Mtn
105
109
Easy 3 11.46
1.61
Seasonal May 15 to Nov 30
Includes 105.1A-C,.2A,429.1
Includes 109.1A-.1C
Prophyry Mtn Prophyry Mtn 281   0.71  
Rainbow Lakes Rainbow Lakes FR298
Cnty116
Easy 1 5.00 Seasonal Jun 15 to Nov 30
FS / Boulder Cnty(signed)
Rock Creek Rock Creek 116 Easy 4 4.66 Includes 116.2,.2B,.2C,.2E,.2G-I(signed)
Rollins Pass Moffat Road 149 Easy 1 13.54 Includes 148.1, 501.1 (signed)
Sawmill Gulch Sawmill Gulch Cutoff 461   1.00 Includes 461.1A
Sherwood Creek Sherwood Creek Spur 497   0.17  
Spring Gulch Spring Gulch 370 Easy 2 0.88 Includes 370.1A
Starnes Starnes 380   0.70 Part Closed in Lump Gulch fuels
Switzerland Trail Switzerland Trail 93   1.90  
Switzerland Trail Spurs Switzerland North 221 Easy 1 1.52 Includes 221.1A-.1C
Taylor Mountain Taylor Mountain 330 Easy 2 2.91 Seasonal May 15 to Jan 30
Includes 330.2B,.2C(signed)
Tree Farm Tree Farm 378 Easy 1 0.25
Tuscarora Cutoff Tuscarora Cutoff 460   0.50  
Twin Sisters Twin Sisters 302   2.81 Includes 302.1A,.1B,.1D-F
Walker Mountain Walker Mountain 509.1A Moderate 7 1.73 (signed)
Winiger Gulch Winiger Gulch 97.1 Easy 1 2.68 Seasonal May 15 to Nov 30
Winiger Ridge Winiger Ridge 359   3.62 Seasonal May 15 to Nov 30
Includes 359.1A,.1C,.1F,.1P,.1R-.1T
Total Miles of Recreation Roads OPEN 221.75
Last Modified: 12/08/14

Notes:

Roads listed are shown on the Boulder Ranger District Motor Vehicle Use Map (MVUM).

Road mileage is taken from Forest Service INFRA data as of January 2005 and Motor Vehicle Use Map as of 2010. It has been cross refereced with Forest Service topo maps, from 2000 and 2002, overlayed with transportation routes.

Difficulty ratings are based on an average. To some, the levels list the road as easier than they are, while to others they are listed as harder. Consider this when choosing roads to drive. Know your ability. If you are new to four wheeling, start at the easy level and work up to find your highest ability.