Boulder Open Space and Mountain Parks

Left Hand Valley Reservoir–Mesa Reservoir, 6 sights

9.2 mi · ▲ 430 ft · 3 hr 17 min

Left Hand Valley Reservoir–Mesa Reservoir, 6 sights is a 9.2-mile out-and-back in Boulder Open Space and Mountain Parks near Pine Brook Hill, CO. The route passes Mesa Reservoir before reaching Left Hand Valley Reservoir at the turnaround, 4.6 miles in. It climbs 430 ft and is mostly dirt. It scores 2/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi5,319 – 5,558 ft9.6 mi

Getting there

Trailhead: Eagle Trail 40.07275, -105.28210
Nearest town Pine Brook Hill, CO

Directions

AMBLEWAYwww.ambleway.com

Left Hand Valley Reservoir–Mesa Reservoir, 6 sights

9.2 mi · ▲ 430 ft · 3 hr 17 min

Elevation 5,318–5,559 ft

Out & Back · Boulder Open Space and Mountain Parks

Trailhead: Eagle Trail · 40.07275, -105.28210

Weather Sep 4: Drizzle, high 91°F / low 59° · precip 8% · wind 5 mph · sunrise 6:33 AM · sunset 7:30 PM

Parking lot at the trailhead

  1. Start on Eagle Trail, heading E.
  2. 50 ftContinue straight onto Degge Trail, heading E.
  3. 0.4 miTurn left, heading E.
  4. 0.5 miTurn right onto Shale Trail, heading N.
  5. 50 ftPass Mesa Reservoir.
  6. 0.7 miTurn left onto Sage Trail, heading N.
  7. 100 ftTurn left onto Left Hand Trail, heading N.
  8. 3.1 miReach Left Hand Valley Reservoir, then turn around and head back the way you came.
  9. 3.1 miTurn right, heading S.
  10. 100 ftTurn right onto Shale Trail, heading S.
  11. 0.7 miTurn left onto Degge Trail, heading NW.
  12. 0.5 miTurn left, heading W.
  13. 0.4 miContinue straight onto Eagle Trail, heading W.
  14. 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 surface

86% dirt14% gravel

Weather

DrizzleTemperature 91°F59°
Feels like83°Precip8%Wind5 mphUV7Humidity15%
Rained 0.2″ 4 days ago
Hourly temperature
95°55°
Sunrise 6:33 AM12 AM3 AM9 AM12 PM3 PMSunset 7:30 PM
Sat 91°70°
Sun 92°64° 28%
Mon 88°67° 36%
Tue 87°62° 22%
Wed 85°58° 30%
Thu 93°60° 32%

Good to know

  • Parking lot at the trailhead

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