AMBLEWAY Wildest hikes

Boulder Open Space and Mountain Parks

Greenbelt Plateau Trail–High Plains Trail, 3 sights

12.1 mi · ▲ 849 ft · 4 hr 27 min

Greenbelt Plateau Trail–High Plains Trail, 3 sights is a 12.1-mile out-and-back in Boulder Open Space and Mountain Parks near Marshall, CO. It climbs 849 ft and is mostly dirt. It scores 0/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi5,568 – 5,965 ft13.1 mi

Getting there

Trailhead: Coal Seam Trail 39.95286, -105.23116
Nearest town Marshall, CO
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Directions

AMBLEWAYwww.ambleway.com

Greenbelt Plateau Trail–High Plains Trail, 3 sights

12.1 mi · ▲ 849 ft · 4 hr 27 min

Elevation 5,567–5,964 ft

Out & Back · Boulder Open Space and Mountain Parks

Trailhead: Coal Seam Trail · 39.95286, -105.23116

Weather Sep 6: sunrise 6:34 AM · sunset 7:26 PM

Transit-accessible: CO 93 & Eldorado Springs Dr stop 130 m from the trailhead · Parking lot at the trailhead

  1. Start at the trailhead, heading SW.
  2. 50 ftBear left onto Coal Seam Trail, heading S.
  3. 0.5 miSharp left onto Community Ditch Trail, heading SW.
  4. 0.3 miTurn left onto Greenbelt Plateau Bypass, heading SE.
  5. 50 ftTurn right onto Greenbelt Plateau Trail, heading SE.
  6. 1.3 miSharp left onto High Plains Trail, heading S.
  7. 2.7 miContinue straight onto Rocky Mountain Greenway Trail, heading NE.
  8. 1.4 miReach Greenbelt Plateau Trail, then turn around and head back the way you came.
  9. 1.4 miContinue straight onto High Plains Trail, heading SW.
  10. 2.7 miSharp right onto Greenbelt Plateau Trail, heading W.
  11. 1.3 miTurn left onto Greenbelt Plateau Bypass, heading N.
  12. 50 ftTurn right onto Community Ditch Trail, heading N.
  13. 0.3 miSharp right onto Coal Seam Trail, heading NE.
  14. 0.5 miBear right, heading SW.
  15. 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/greenbelt-plateau-trail-high-plains-trail-out-back-3-sights

Trail surface

64% dirt36% gravel

Weather

Sunrise 6:34 AMSunset 7:26 PM

Good to know

  • Transit-accessible: CO 93 & Eldorado Springs Dr stop 130 m from the trailhead
  • Parking lot at the trailhead

More from Coal Seam Trail Trailhead

Hikes near Marshall, Colorado