AMBLEWAY Wildest hikes

Arapaho National Forest

Dirty Dozen–Green World, 10 sights

8.1 mi · ▲ 2,650 ft · 4 hr 1 min

Dirty Dozen–Green World, 10 sights is an 8.1-mile out-and-back in Arapaho National Forest near Winter Park, CO. It climbs 2,650 ft, with sections as steep as 19% grade. It scores 20/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi9,108 – 10,532 ft · steepest grade: 19%9.2 mi

Getting there

Trailhead: Tunnel Hill 39.89089, -105.77270
Nearest town Winter Park, CO
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Directions

AMBLEWAYwww.ambleway.com

Dirty Dozen–Green World, 10 sights

8.1 mi · ▲ 2,650 ft · 4 hr 1 min

Elevation 9,109–10,533 ft

Out & Back · Arapaho National Forest

Trailhead: Tunnel Hill · 39.89089, -105.77270

Weather Sep 5: Light drizzle, high 72°F / low 45° · precip 13% · wind 6 mph · sunrise 6:36 AM · sunset 7:30 PM

Transit-accessible: Old Town Winter Park stop 680 m from the trailhead

  1. Start on Tunnel Hill, heading SW.
  2. 400 ftTurn right onto Tunnel Hill Road, heading SW.
  3. 50 ftContinue straight onto Lower Green World, heading SW.
  4. 150 ftContinue straight onto Lower Long Trail, heading S.
  5. 0.1 miSharp left onto Lower Rainmaker, heading NW.
  6. 0.4 miContinue straight onto No Quarter, heading NE.
  7. 0.1 miContinue straight onto Lower Long Trail, heading W.
  8. 50 ftContinue straight onto No Quarter, heading W.
  9. 50 ftContinue straight onto Lower Long Trail, heading NW.
  10. 50 ftContinue straight onto No Quarter, heading NW.
  11. 0.1 miBear right onto Green World, heading NW.
  12. 50 ftBear left onto Long Trail, heading NW.
  13. 450 ftBear right onto Rainmaker, heading SW.
  14. 50 ftTurn right onto Long Trail, heading SW.
  15. 350 ftBear left onto Lower Free Speech, heading SW.
  16. 500 ftTurn left onto Green World, heading S.
  17. 50 ftContinue straight onto Lower Free Speech, heading S.
  18. 400 ftBear left onto Green World, heading S.
  19. 0.1 miContinue straight onto Dirty Dozen, heading E.
  20. 100 ftContinue straight onto Green World, heading E.
  21. 50 ftContinue straight onto Dirty Dozen, heading S.
  22. 50 ftContinue straight onto Green World, heading S.
  23. 450 ftContinue straight onto Free Speech, heading S.
  24. 50 ftContinue straight onto Shy Ann, heading S.
  25. 150 ftBear left onto Middle Boulevard, heading S.
  26. 0.2 miContinue straight onto Trestle Downhill, heading SE.
  27. 0.3 miSharp left onto Upper Boulevard, heading SE.
  28. 0.4 miSharp left onto Ute Trail, heading SW.
  29. 1.8 miReach Tunnel Hill, then turn around and head back the way you came.
  30. 1.8 miSharp right onto Upper Boulevard, heading SW.
  31. 0.4 miSharp right onto Trestle Downhill, heading S.
  32. 0.3 miContinue straight onto Middle Boulevard, heading E.
  33. 0.2 miBear right onto Shy Ann, heading W.
  34. 150 ftContinue straight onto Free Speech, heading NW.
  35. 50 ftContinue straight onto Green World, heading NW.
  36. 450 ftContinue straight onto Dirty Dozen, heading NE.
  37. 100 ftContinue straight onto Green World, heading NE.
  38. 50 ftContinue straight onto Dirty Dozen, heading NE.
  39. 50 ftContinue straight onto Green World, heading N.
  40. 0.2 miBear right onto Lower Free Speech, heading W.
  41. 350 ftContinue straight onto Green World, heading W.
  42. 50 ftTurn right onto Lower Free Speech, heading W.
  43. 0.1 miBear right onto Long Trail, heading NW.
  44. 350 ftTurn left onto Rainmaker, heading NW.
  45. 50 ftBear left onto Long Trail, heading NW.
  46. 450 ftBear right onto Green World, heading W.
  47. 50 ftBear left onto No Quarter, heading W.
  48. 0.1 miContinue straight onto Lower Long Trail, heading N.
  49. 50 ftContinue straight onto No Quarter, heading N.
  50. 50 ftContinue straight onto Lower Long Trail, heading N.
  51. 100 ftContinue straight onto No Quarter, heading N.
  52. 0.1 miContinue straight onto Lower Rainmaker, heading NE.
  53. 0.4 miSharp right onto Lower Long Trail, heading NE.
  54. 0.1 miContinue straight onto Lower Green World, heading NE.
  55. 100 ftContinue straight onto Tunnel Hill Road, heading NE.
  56. 50 ftTurn left onto Tunnel Hill, heading E.
  57. 50 ftArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail map, photos and weather for this hike: www.ambleway.com/hikes/dirty-dozen-green-world-out-back-11-sights

Trail surface

59% dirt41% unspecified

Weather

Light drizzleTemperature 72°F45°
Precip13%Wind6 mphUV7Humidity45%
Rained 0.3″ 5 days ago
Hourly temperature
75°45°
Sunrise 6:36 AM12 AM3 AM9 AM12 PM3 PMSunset 7:30 PM
Sun 73°50° 23%
Mon 65°49°
Tue 73°47°
Wed 72°45° 18%
Thu 72°44° 16%
Fri 72°45° 17%

Sunset

The best sunset spot on this hike is 2.3 mi in (~85 min). Leave by 5:45 PM for the 7:30 PM sunset. Back at your car by 8:41 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Transit-accessible: Old Town Winter Park stop 680 m from the trailhead

More from Tunnel Hill Trailhead

Hikes near Winter Park, Colorado