Mount Conness

Mountain Granite summit on Sierra Nevada crest, alpine views

Granite summit near Tioga Pass in the Sierra Nevada; attracts scramblers and climbers for alpine routes, the Conness Glacier and high-Sierra panoramas.

Main image

Mount Conness is a high peak on the Sierra Nevada crest in eastern California, straddling the boundary of the Yosemite area and Inyo National Forest. It is noted for its high, exposed ridges and remaining alpine glaciers.

A prominent granite summit and ridgeline that attract climbers and scramblers; the normal approaches come from the Tioga Pass/Mono Lake side with routes that involve snow slopes, exposed scrambling and at times glacier travel. The mountain overlooks Tioga Pass and offers broad views of the high Sierra, with summit elevations typically reported around 12,590 feet (about 3,840 meters).

Named in the 19th century after John Conness, a U.S. senator who helped preserve parts of the Sierra. The peak has long been a mountaineering objective since the late 1800s and remains valued for alpine climbs and ridge traverses.

Sits on the Sierra Nevada crest near Tioga Pass in eastern California, north of Yosemite Valley and east of the main Yosemite high country. The nearest road access is Tioga Road (California Route 120) and the nearest towns on the eastern side are Lee Vining and Mono Lake.

  • Location access: Sits on the Sierra Nevada crest just north of Tioga Pass and the eastern boundary of Yosemite National Park, making it accessible from Tioga Road and nearby trailheads.
  • Climbing notes: Classic alpine routes include steep snow and mixed climbs on the summit ridge; appropriate glacier and alpine equipment are required for most approaches outside summer.

What to See #

  • Conness Glacier: A native glacier on the northeast side of the summit that persists above the east face and is a common objective for glacier travel on routes to the summit.
Mount Conness
Mount Conness, Sierra Nevada near Tioga Pass, California
37.9669, -119.3213

How to Get to Mount Conness #

Drive Tioga Road (Highway 120) in Yosemite National Park to the Saddlebag Lake area or Tioga Pass parking; trailheads and routes start near the pass when the road is open (usually late May-October depending on snow).

Tips for Visiting Mount Conness #

  • Approach from Tioga Pass Road (Highway 120) and plan for alpine conditions; leave early to avoid afternoon thunderstorms.
  • Bring protection for the Conness Knife Edge-route can feel exposed and requires steady feet.

Best Time to Visit Mount Conness #

High Sierra summers provide the most reliable access to Mount Conness via Tioga Pass and Saddlebag Lake areas.

Summer (Jul-Sep)
Jul-Sep · 5-20°C
Tioga Road is open and conditions are best for scrambling and alpine routes.

Weather & Climate near Mount Conness #

Climate

Mount Conness's climate is classified as Subarctic (Dry Summer) - Subarctic (Dry Summer) climate with cold summers (peaking in August) and freezing winters (coldest in March). Temperatures range from -14°C to 16°C. Moderate rainfall (884 mm/year).

Temperature & Rainfall
Temperature Range
16°
Warmest Month
-14°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -1°C and lows of -13°C. The wettest month with heavy rain (146 mm).

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-13° -1°

Weather

146 mm
Rainfall
5.2 m/s
Wind
Light Breeze

February

February is freezing with highs of -1°C and lows of -14°C. Significant rainfall (117 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-14° -1°

Weather

117 mm
Rainfall
4.9 m/s
Wind
Light Breeze

March

March is the coldest month with highs of -2°C and lows of -14°C. Significant rainfall (107 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-14° -2°

Weather

107 mm
Rainfall
5.2 m/s
Wind
Light Breeze

April

April is freezing with highs of 0°C and lows of -12°C. Moderate rainfall (65 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-12°

Weather

65 mm
Rainfall
5.2 m/s
Wind
Light Breeze

May

May is freezing with highs of 3°C and lows of -8°C. Moderate rainfall (35 mm).

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-8°

Weather

35 mm
Rainfall
5.2 m/s
Wind
Light Breeze

June

June is cold with highs of 8°C and lows of -4°C. The driest month with just 24 mm.

Comfort

Feels Like Cold
C
Temperature
-5°

Weather

24 mm
Rainfall
4.9 m/s
Wind
Light Breeze

July

July is cold with highs of 15°C and lows of 0°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
15°

Weather

25 mm
Rainfall
4.5 m/s
Wind
Light Breeze

August

August is cold with highs of 16°C and lows of 2°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
16°

Weather

29 mm
Rainfall
4.5 m/s
Wind
Light Breeze

September

September is cold with highs of 13°C and lows of -1°C. Moderate rainfall (34 mm).

Comfort

Feels Like Cold
C
Temperature
-1° 13°

Weather

34 mm
Rainfall
4.7 m/s
Wind
Light Breeze

October

October is cold with highs of 9°C and lows of -5°C. Moderate rainfall (49 mm).

Comfort

Feels Like Cold
C
Temperature
-5°

Weather

49 mm
Rainfall
5.0 m/s
Wind
Light Breeze

November

November is freezing with highs of 3°C and lows of -9°C. Significant rainfall (122 mm).

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-9°

Weather

122 mm
Rainfall
5.6 m/s
Wind
Light Breeze

December

December is freezing with highs of 0°C and lows of -13°C. Significant rainfall (131 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-13°

Weather

131 mm
Rainfall
5.4 m/s
Wind
Light Breeze

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