Northwest Open Space

Sunny Acres Reservoir–Grange Hall Greenway, 3 sights

8.3 mi · ▲ 163 ft · 2 hr 51 min

Sunny Acres Reservoir–Grange Hall Greenway, 3 sights is an 8.3-mile out-and-back in Northwest Open Space near Thornton, CO. The route reaches Sunny Acres Reservoir. It is mostly level, with 163 ft of elevation gain, and mostly paved. It scores 0/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi5,230 – 5,433 ft9.1 mi

Getting there

Trailhead: Unnamed 39.88562, -104.96096
Nearest town Thornton, CO

Directions

AMBLEWAYwww.ambleway.com

Sunny Acres Reservoir–Grange Hall Greenway, 3 sights

8.3 mi · ▲ 163 ft · 2 hr 51 min

Elevation 5,231–5,434 ft

Out & Back · Northwest Open Space

Trailhead: 39.88562, -104.96096

Weather Sep 4: Clear, high 95°F / low 61° · precip 15% · wind 6 mph · sunrise 6:31 AM · sunset 7:28 PM

Transit-accessible: stop 178 m from the trailhead · Parking lot at the trailhead

  1. Start at the trailhead, heading SW.
  2. 50 ftPass Sunny Acres Reservoir.
  3. 50 ftTurn right, heading W.
  4. 350 ftSharp right onto Grange Hall Creek Trail, heading N.
  5. 0.3 miTurn left onto Grange Hall Greenway, heading NW.
  6. 0.7 miContinue straight onto Greenway, heading W.
  7. 100 ftTurn left, heading W.
  8. 50 ftBear left onto Grange Hall Greenway, heading W.
  9. 0.7 miContinue straight onto I-25 Greenway, heading N.
  10. 0.5 miSharp left onto Farmers High Line Canal Trail, heading N.
  11. 1.1 miTurn right, heading W.
  12. 0.2 miBear left, heading S.
  13. 200 ftTurn left, heading W.
  14. 0.6 miTurn left, heading SE.
  15. 150 ftTurn right onto Northwest OS path, heading E.
  16. 150 ftReach Sunny Acres Reservoir, then turn around and head back the way you came.
  17. 150 ftTurn left, heading SE.
  18. 0.7 miTurn right, heading N.
  19. 250 ftBear right, heading NE.
  20. 0.2 miTurn left onto Farmers High Line Canal Trail, heading E.
  21. 1.1 miSharp right onto I-25 Greenway, heading E.
  22. 1.2 miBear right, heading E.
  23. 50 ftTurn right onto Greenway, heading E.
  24. 100 ftContinue straight onto Grange Hall Greenway, heading E.
  25. 0.7 miTurn right onto Grange Hall Creek Trail, heading E.
  26. 0.3 miSharp left, heading E.
  27. 300 ftTurn left, heading E.
  28. 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

78% paved4% dirt18% unspecified

Weather

ClearTemperature 95°F61°
Feels like79°Precip15%Wind6 mphUV7Humidity19%
Hourly temperatureRain chance
95°60° 5 PM: 1% rain6 PM: 1% rain7 PM: 4% rain8 PM: 15% rain9 PM: 4% rain10 PM: 2% rain11 PM: 2% rain
Sunrise 6:31 AM12 AM3 AM9 AM12 PM3 PMSunset 7:28 PM
Sat 93°66°
Sun 91°63° 24%
Mon 91°75° 33%
Tue 88°71° 22%
Wed 88°67° 26%
Thu 93°69° 26%

Sunset

The best sunset spot on this hike is 3.2 mi in (~83 min). Leave by 5:45 PM for the 7:28 PM sunset. Back at your car by 9:02 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Transit-accessible: stop 178 m from the trailhead
  • Parking lot at the trailhead

More from this trailhead