Boulder Open Space and Mountain Parks
Loukonen Brothers Reservoir–North Rim Trail, 3 sights
3.3 mi · ▲ 195 ft · 1 hr 12 min
Loukonen Brothers Reservoir–North Rim Trail, 3 sights is a 3.3-mile out-and-back in Boulder Open Space and Mountain Parks near Altona, CO. The route reaches Loukonen Brothers Reservoir at the turnaround, 1.6 miles in. It is mostly level, with 195 ft of elevation gain, and mostly dirt. It scores 8/100 on the Ambleway Wildness scale: paved and peopled.
Elevation
Getting there
Directions
Loukonen Brothers Reservoir–North Rim Trail, 3 sights
3.3 mi · ▲ 195 ft · 1 hr 12 min
Elevation 5,259–5,377 ft
Out & Back · Boulder Open Space and Mountain Parks
Trailhead: North Rim Trail · 40.08760, -105.25152
Weather Sep 5: Light drizzle, high 92°F / low 63° · precip 5% · wind 5 mph · sunrise 6:33 AM · sunset 7:28 PM
- Start on North Rim Trail, heading SW.
- 0.4 miTurn right onto Sage Trail, heading SW.
- 0.6 miBear right onto Left Hand Trail, heading W.
- 0.5 miTurn right, heading E.
- 0.2 miReach Loukonen Brothers Reservoir, then turn around and head back the way you came.
- 0.7 miBear left onto Sage Trail, heading NE.
- 0.6 miTurn left onto North Rim Trail, heading N.
- 0.3 miArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
Weather
More from North Rim Trail Trailhead
- Cobalt Trail–North Rim Trail, 4 sights 4 mi · ▲ 331 ft
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Hikes near Altona, Colorado