Location and surroundings
McIntosh Peak sits in the Granite Mountains, part of the Great Divide Basin Area within the Greater Yellowstone Rockies, Rocky Mountains, and the wider North American Cordillera. It is in Natrona County, Wyoming, United States. At 2,429 m, it is the highest of the 10 named peaks in its range and the range high point. The terrain around it is typical of a dry western mountain block: ridges, domes, rock outcrops, and open slopes rather than dense forest.
Neighbouring peaks
McIntosh Peak is surrounded by several named summits and passes in the Granite Mountains. The closest are:
- Moonstone — 2,295 m, 1.3 km north
- Lankin Dome — 2,342 m, 3.4 km northwest
- Countryman Peak — 2,226 m, 4.2 km east
- Split Rock — 2,189 m, 4.3 km south
- Great Stone Face — 2,049 m, 5.5 km southwest
- Bills Peak — 2,259 m, 5.6 km west
- Lone Mountain — 2,382 m, 6.9 km northeast
- Cranner Rock — 1,926 m, 7.3 km south
Most of these neighbours are lower than McIntosh Peak, with Lone Mountain the closest summit that comes near its height. The spacing suggests a compact mountain group with short cross-country distances between named points.
The view from the summit
Within 25 km, the highest surrounding peaks are led by Green Mountain at 2,807 m, 23.4 km south. Other notable high points include Savage Peak at 2,331 m, 20.2 km east; Nemo Benchmark at 2,255 m, 11.8 km east; Sacawee Benchmark at 2,246 m, 18.7 km northeast; Fork Benchmark at 2,237 m, 21.7 km south; and Pete Benchmark at 2,196 m, 23.7 km northeast. From McIntosh Peak, these are the main named summits likely to define the wider skyline.
The range
McIntosh Peak belongs to the Granite Mountains, whose highest peak is McIntosh Peak itself. The range contains 10 named peaks, and McIntosh Peak ranks first by elevation among them. In the broader mountain hierarchy, the Granite Mountains sit inside the Great Divide Basin Area, then the Greater Yellowstone Rockies, the Rocky Mountains, and the North American Cordillera. That makes McIntosh Peak the key summit for this small Wyoming range.
Climate and weather
Climate estimates from NASA POWER climate data suggest a summit mean of about -8 °C in December and 19 °C in July, with the coldest months in midwinter and the warmest in midsummer. Around the mountain, precipitation is lowest in about January at 10 mm and highest in about May at 50 mm, for roughly 300 mm a year. Expect dry air, strong sun, wind on exposed ridges, and rapid weather changes typical of high, open Wyoming terrain.
Best time to visit
At the summit, average temperatures are above freezing from April through October, which is the most practical window for travel on the mountain. The drier part of the year is generally late winter and early spring, while late spring brings the highest monthly precipitation around the mountain. For a day outing, the most comfortable conditions are usually in the warmer months, but even then wind and cool mornings can make the upper slopes feel much colder than the monthly mean.
Nature and wildlife
The Granite Mountains are part of a dry interior mountain landscape, so expect open slopes, rocky ridges, sparse grass, low shrubs, and patches of hardy alpine vegetation near the top. Tree cover is likely limited compared with wetter ranges, especially on exposed aspects. Wildlife in this part of Wyoming commonly includes animals adapted to open country and elevation changes, with larger mammals using the broader basin and foothill terrain and smaller species occupying the rocky high ground.
Guides and organised ascents
For a mountain like McIntosh Peak, a certified guide is usually optional rather than essential, but it can be useful for route-finding, weather judgment, and safe travel on rough terrain. In the United States, the main professional body is the American Mountain Guides Association, an IFMGA/UIAGM member. The national alpine club is the American Alpine Club. Established guiding companies include RMI Expeditions and Exum Mountain Guides, though no specific operator is named for this peak. Permit rules can apply on some U.S. mountains, so check the land agency before going.
Safety and preparation
McIntosh Peak’s elevation, exposed setting, and dry mountain climate call for solid footwear, navigation skills, sun protection, and layers for wind and temperature swings. Snow can linger on higher ground outside the warm season, and the open terrain offers little shelter. Carry enough water for a full day, especially in warm weather. For mountain emergencies in the United States, call 911; dispatchers can alert the local search and rescue team, usually through the county sheriff or a national park system.
Interesting facts
McIntosh Peak is the highest of 10 named peaks in the Granite Mountains and the range high point. Its nearest higher-looking neighbour among the close summits is Lone Mountain, but McIntosh Peak remains higher at 2,429 m. The most prominent higher summit in the wider 25 km circle is Green Mountain, 23.4 km to the south. The mountain also sits in Natrona County, giving it a clear county-level location in central Wyoming.
FAQ
How high is McIntosh Peak? It rises to 2,429 m.
Where is McIntosh Peak? It is in Natrona County, Wyoming, in the United States.
What range is McIntosh Peak part of? It is in the Granite Mountains, within the Great Divide Basin Area of the Rocky Mountains.
Is McIntosh Peak the highest mountain in its range? Yes. It is the highest of the 10 named peaks in the Granite Mountains.
What are the nearest peaks to McIntosh Peak? The closest named summit is Moonstone, 1.3 km north, followed by Lankin Dome 3.4 km northwest and Countryman Peak 4.2 km east.
Is there water on the way to McIntosh Peak? On a dry mountain like this, plan to carry your own water. In warm weather, bring about 1.5 to 3 litres for a day, more if the route is long or exposed.
When is the best time to visit McIntosh Peak? The summit is above freezing on average from April through October, which is the main season for a visit.