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1st/2nd Flatiron–Amphitheater Trail Loop, 5 sights is a 2.4-mile loop in Boulder Open Space and Mountain Parks near Boulder, CO. It climbs 1,392 ft, with sections as steep as 33% grade, and is mostly dirt. It scores 3/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi5,807 – 7,162 ft · steepest grade: 33%2.6 mi

Getting there

Trailhead: Amphitheater Trail 39.99761, -105.29274
Nearest town Boulder, CO

Directions

AMBLEWAYwww.ambleway.com

1st/2nd Flatiron–Amphitheater Trail Loop, 5 sights

2.4 mi · ▲ 1,392 ft · 1 hr 30 min

Elevation 5,807–7,164 ft

Loop · Boulder Open Space and Mountain Parks

Trailhead: Amphitheater Trail · 39.99761, -105.29274

Weather Sep 4: Overcast, high 91°F / low 64° · precip 6% · wind 6 mph · sunrise 6:33 AM · sunset 7:30 PM

Toilets at the trailhead · Parking lot at the trailhead

  1. Start on Amphitheater Trail, heading E.
  2. 50 ftTurn left onto Bluebell-Baird Trail, heading SE.
  3. 50 ftSharp right onto Amphitheater Trail, heading S.
  4. 450 ftBear left onto Amphitheater Expressway, heading S.
  5. 50 ftTurn right onto Amphitheater Trail, heading S.
  6. 0.3 miContinue straight onto Saddle Rock Trail, heading SW.
  7. 0.6 miTurn left onto Saddle Rock, heading S.
  8. 0.3 miTurn left onto 1st/2nd Flatiron, heading NE.
  9. 50 ftReach Amphitheater Trail, then turn around and head back the way you came.
  10. 0.7 miSharp left onto Flatirons Loop Trail, heading E.
  11. 350 ftTurn left onto Bluebell-Baird Trail, heading N.
  12. 50 ftContinue straight onto Chautauqua Trail, heading SE.
  13. 50 ftBear right onto Bluebell-Baird Trail, heading SE.
  14. 0.4 miTurn right onto Amphitheater Trail, heading W.
  15. 50 ftThe loop closes back at the trailhead.

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

Trail surface

100% dirt

Weather

OvercastTemperature 91°F64°
Feels like79°Precip6%Wind6 mphUV7Humidity19%
Rained 0.1″ 4 days ago
Hourly temperature
95°60°
Sunrise 6:33 AM12 AM3 AM9 AM12 PM3 PMSunset 7:30 PM
Sat 91°71°
Sun 87°63° 28%
Mon 87°66° 43%
Tue 87°62° 25%
Wed 83°59° 31%
Thu 92°62° 33%

Good to know

  • Toilets at the trailhead
  • Parking lot at the trailhead

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