AMBLEWAY Wildest hikes

Boulder Open Space and Mountain Parks

Loukonen Brothers Reservoir–North Rim Trail, 3 sights

5.6 mi · ▲ 277 ft · 2 hr

Loukonen Brothers Reservoir–North Rim Trail, 3 sights is a 5.6-mile out-and-back in Boulder Open Space and Mountain Parks near Altona, CO. The route reaches Loukonen Brothers Reservoir at the turnaround, 2.8 miles in. It climbs 277 ft and is mostly dirt. It scores 14/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi5,223 – 5,378 ft5.7 mi

Getting there

Trailhead: Unnamed 40.09803, -105.24611
Nearest town Altona, CO
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Directions

AMBLEWAYwww.ambleway.com

Loukonen Brothers Reservoir–North Rim Trail, 3 sights

5.6 mi · ▲ 277 ft · 2 hr

Elevation 5,222–5,377 ft

Out & Back · Boulder Open Space and Mountain Parks

Trailhead: 40.09803, -105.24611

Weather Sep 4: sunrise 6:32 AM · sunset 7:30 PM

  1. Start on North Rim Trail, heading E.
  2. 1.5 miTurn right onto Sage Trail, heading SW.
  3. 0.6 miBear right onto Left Hand Trail, heading W.
  4. 0.5 miTurn right, heading E.
  5. 0.2 miReach Loukonen Brothers Reservoir, then turn around and head back the way you came.
  6. 0.7 miBear left onto Sage Trail, heading NE.
  7. 0.6 miTurn left onto North Rim Trail, heading N.
  8. 1.4 miArrive 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/loukonen-brothers-reservoir-loukonen-brothers-reservoir-out-back-4-sights-9-km

Trail surface

80% dirt20% gravel

Weather

Sunrise 6:32 AMSunset 7:30 PM

More from this trailhead

Hikes near Altona, Colorado