Hesperus Mountain (Colorado)

Mountain Prominent La Plata Range peak, sacred in Navajo tradition

A prominent peak in southwest Colorado’s La Plata range, Hesperus Mountain attracts experienced climbers and backpackers seeking steep alpine routes and remote views.

Main image
Main image

Hesperus Mountain is a prominent peak in southwestern Colorado and the highest summit of the La Plata Mountains. The mountain is notable for both its alpine prominence and cultural significance.

The mountain has long been known to and regarded as significant by Indigenous peoples of the region; in more recent centuries it has been mapped and named by Euro-American explorers and used for recreational activities. Modern climbing and trail use increased with regional outdoor recreation development.

Hesperus Mountain rises in the La Plata and San Juan ranges of southwestern Colorado, visible from nearby towns such as Mancos and Durango and located within public land managed for multiple recreational uses.

  • Elevation: Elevation is approximately 13,200 feet (about 4,030 metres), making it the highest peak of the La Plata Mountains in southwestern Colorado.
  • Cultural significance: Regarded as a traditional sacred mountain by local Indigenous peoples, it holds cultural significance distinct from recreational use.
Hesperus Mountain (Colorado)
37.4450, -108.0890

How to Get to Hesperus Mountain (Colorado) #

Hesperus Mountain (Colorado) is a remote peak in the La Plata Mountains (southwestern Colorado) and is accessed from local trailheads in the San Juan National Forest area. The nearest towns used as bases are Mancos and Durango; from Durango the driving distance to trailhead areas is on the order of 30-60 miles depending on route (approximately 1-2 hours). Reaching the summit requires driving on forest/rough access roads (often high‑clearance/4WD) followed by a substantial hiking route - consult current US Forest Service maps and local trailhead information for exact roads, parking and trail distances.

Tips for Visiting Hesperus Mountain (Colorado) #

  • Treat Hesperus Mountain as both an alpine objective and a culturally significant landmark-it's sacred in Navajo tradition, so be respectful of that status and any posted restrictions or guidance from local communities.
  • Aim for a late-summer visit (July-September) when snow has melted from high routes; afternoons frequently produce thunderstorms in the Colorado high country, so plan summit attempts or high ridgeline travel for early morning.
  • Check conditions and route information with local rangers or guide services before setting out-trailheads in the La Plata/Hesperus area can be remote, and up-to-date advice on route difficulty and snow/rockfall hazards is important.

Best Time to Visit Hesperus Mountain (Colorado) #

Best visited in summer (June-September) for the safest, snow‑free access; winter conditions are snowy and technical.

Summer (hiking season)
June-September · 0-15°C (summit)
The primary window for non-technical hiking and route access - daytime conditions are coolest at the summit and nights can drop below freezing.
Shoulder season (spring/snowmelt)
May, October · Below freezing to single digits°C
Snowmelt or early snow can make routes muddy or snowy and conditions are variable; expect limited accessibility.
Winter
November-April · Well below 0°C at altitude
Snowy, icy and avalanche-prone - winter ascents require mountaineering experience and specialized gear.

Weather & Climate near Hesperus Mountain (Colorado) #

Climate

Hesperus Mountain (Colorado)'s climate is classified as Subarctic - Subarctic climate with cold summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -16°C to 17°C. Moderate rainfall (930 mm/year).

Temperature & Rainfall
Temperature Range
17°
Warmest Month
-16°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -1°C and lows of -16°C. Moderate rainfall (79 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-16° -1°

Weather

79 mm
Rainfall
5.0 m/s
Wind
Light Breeze

February

February is the coldest month with highs of -1°C and lows of -16°C. Moderate rainfall (77 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-16° -1°

Weather

77 mm
Rainfall
4.9 m/s
Wind
Light Breeze

March

March is freezing with highs of -1°C and lows of -15°C. Regular rainfall (91 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-15° -1°

Weather

91 mm
Rainfall
4.9 m/s
Wind
Light Breeze

April

April is freezing with highs of 1°C and lows of -12°C. Moderate rainfall (65 mm).

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-12°

Weather

65 mm
Rainfall
5.2 m/s
Wind
Light Breeze

May

May is freezing with highs of 6°C and lows of -6°C. Moderate rainfall (49 mm).

Comfort

Feels Like Freezing
C
Temperature
-7°

Weather

49 mm
Rainfall
4.9 m/s
Wind
Light Breeze

June

June is cold with highs of 12°C and lows of -2°C. Moderate rainfall (41 mm).

Comfort

Feels Like Cold
C
Temperature
-2° 12°

Weather

41 mm
Rainfall
4.4 m/s
Wind
Light Breeze

July

July is cold with highs of 17°C and lows of 3°C. Regular rainfall (96 mm).

Comfort

10°
Feels Like Cold
10°C
Temperature
17°

Weather

96 mm
Rainfall
3.5 m/s
Wind
Light Breeze

August

August is cold with highs of 16°C and lows of 3°C. The wettest month with heavy rain (104 mm).

Comfort

10°
Feels Like Cold
10°C
Temperature
16°

Weather

104 mm
Rainfall
3.4 m/s
Wind
Light Breeze

September

September is cold with highs of 13°C and lows of 1°C. Regular rainfall (82 mm).

Comfort

Feels Like Cold
C
Temperature
13°

Weather

82 mm
Rainfall
4.1 m/s
Wind
Light Breeze

October

October is cold with highs of 8°C and lows of -4°C. Moderate rainfall (77 mm).

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

77 mm
Rainfall
4.6 m/s
Wind
Light Breeze

November

November is freezing with highs of 3°C and lows of -10°C. Regular rainfall (81 mm).

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-10°

Weather

81 mm
Rainfall
4.7 m/s
Wind
Light Breeze

December

December is freezing with highs of 0°C and lows of -14°C. Regular rainfall (88 mm).

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-14°

Weather

88 mm
Rainfall
5.1 m/s
Wind
Light Breeze

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