Anaerobic Nightmare
- 0.8 mi
- round trip
- 508 ft
- climb
- Out and back
- route
- May–Sep
- best months
Is Anaerobic Nightmare open right now?
Alert in the area
The Forest Service lists 6 alerts for White River National Forest.
FSR 286, Radical Hill, is closed due to washouts and unsafe conditions
Agency alert covering White River National Forest · USFS · White River National Forest
Limited parking at Snowmass Creek Trailhead
Agency alert covering White River National Forest · USFS · White River National Forest
Grizzly Creek Trail Closure
Agency alert covering White River National Forest · Order 2026-02 · USFS · White River National Forest
Ruedi Marina Day Use area Dump Station is CLOSED
Agency alert covering White River National Forest · USFS · White River National Forest
Asbestos safety closure - Camp Hale
Agency alert covering White River National Forest · USFS · White River National Forest
As of · Source: USFS · White River National Forest. Agencies don't list every closure — check before you go.
Anaerobic Nightmare is a 0.75-mile out-and-back trail in Colorado with 508 feet of elevation gain. The trail ascends through a steep, short climb before returning via the same route.
Local outfitters
- Hanging Lake Adventure Co-op33 mi away
- Valley Mobile RV Park47 mi away
Not on Roamze yet. Their page has how to reach them.
- Nearby · Lazy Man Short Cut · Grand Turk · Government
Best time to go · May–Sep
Best time to visit Anaerobic Nightmare
Best months: May–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
35° / 9°
11 wet
Feb
38° / 12°
10 wet
Mar
46° / 21°
11 wet
Apr
55° / 28°
11 wet
May
65° / 35°
10 wet
Jun
77° / 42°
7 wet
Jul
82° / 48°
11 wet
Aug
80° / 47°
12 wet
Sep
72° / 40°
9 wet
Oct
60° / 29°
9 wet
Nov
45° / 19°
9 wet
Dec
34° / 9°
11 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Aspen Pitkin Co Ap, CO, 3.2 mi away at 7,720 ft. We don't have this place's elevation, so higher spots nearby can run cooler. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Keep exploring — more rides worth the drive
Lazy Man Short Cut
~11 min drive
0.13-mile trail near 39.2°N 106.8°W, Colorado with 3 ft elevation gain.
Grand Turk
~12 min drive
0.88-mile trail near 39.2°N 106.8°W with 401 ft elevation gain
RIDE
Government
Next door
5.15-mile out-and-back trail in Colorado with 1,100 ft of elevation gain.
RIDE
Sugarbowl
~2 min drive
1.61-mile out-and-back trail in Colorado with 658 ft elevation gain.
RIDE
Shadyside Cut
~10 min drive
0.32-mile trail in Colorado with 110 ft elevation gain.
RIDE
Shadyside
~10 min drive
2.74-mile trail in Colorado with 1,567 ft elevation gain.
RIDE
Sunnyside
~10 min drive
4.00-mile out-and-back trail in Colorado with 1,617 ft elevation gain.
RIDE
Sunnyside
~11 min drive
0.90-mile trail near 39.2°N 106.8°W with 254 ft elevation gain
RIDE
South Spur
~11 min drive
South Spur is a 0.08-mile trail in Colorado near 39.2°N 106.8°W.
RIDE
North Spur
~11 min drive
North Spur is a 0.14-mile trail in Colorado with 29 feet of elevation gain.
Also worth it near here
Photo: jedisct1, CC BY 2.0 (via Flickr)Tom Blake
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Maroon Creek Road
~6 min drive