Location and surroundings
Mount Trumbull lies in Mohave County, Arizona, in the United States, within the wider chain of the North American Cordillera and the Colorado Plateau. More locally it belongs to the Grand Canyon Plateaus and the Uinkaret Plateau. At 2,441 m, it is the highest peak in its range and the high point of the Mount Trumbull area.
The mountain rises from a dry plateau setting with scattered volcanic peaks and broad open country. In this part of northern Arizona, relief is spread out rather than abrupt, so the summit is part of a larger upland landscape rather than a single isolated cone.
Neighbouring peaks
Nearby summits help define the mountain’s setting on the plateau. The closest named peaks and passes are:
- Craigs Knoll — 2,188 m, 6.1 km N
- Mount Logan — 2,388 m, 8.7 km SW
- Petty Knoll — 2,292 m, 8.8 km S
- Slide Mountain — 2,308 m, 9.7 km S
- Hells Hole — 1,923 m, 10.1 km SW
- Pugh Knoll — 1,878 m, 10.5 km N
- Berry Knoll — 2,006 m, 12.4 km NW
- Bull Point — 1,929 m, 13.1 km SW
Mount Trumbull is higher than all of these nearby points, including Mount Logan, which is the closest of the higher neighbours listed here.
The view from the summit
From the summit, the most notable high points within 25 km are spread across the plateau country. To the south lies Mount Emma at 2,342 m, 16.5 km away. To the east is Hancock Knoll at 1,966 m, 15.6 km away. North of the mountain are Seven Knolls at 1,922 m, Spencer Knoll at 1,850 m, Moriah Knoll at 1,867 m, and Hat Knoll at 1,795 m.
These surrounding summits are lower than Mount Trumbull, so the mountain serves as the main high point in its immediate area. Views are shaped by open volcanic uplands and long distances rather than close-in alpine walls.
The range
Mount Trumbull is the highest peak in the Mount Trumbull range, which contains 8 named peaks. The range’s high point is the mountain itself, so there is no higher summit within the range. In the broader regional hierarchy, the range sits within the Uinkaret Plateau, part of the Grand Canyon Plateaus and the Colorado Plateau.
The range is entirely in the United States. For visitors, the key point is that Mount Trumbull is not just a local summit but the top of its own named mountain group.
Climate and weather
These are estimates from NASA POWER climate data adjusted to summit elevation. At the summit, mean temperatures are about 0 °C in January and 21 °C in July, with the coldest month around December at -1 °C. Around the mountain, precipitation is lowest in June at about 5 mm and highest in July and August at about 40 mm each, for roughly 300 mm a year.
Weather hazards in this region include summer heat, dry air, sudden thunderstorms, and winter cold at elevation. Snow and ice can appear in the colder months, while exposed ridges can be windy and dry for much of the year.
Best time to visit
At summit level, the months with mean temperatures above freezing are February through November, which gives a long season compared with many higher mountains. For easier conditions, late spring through early autumn is usually the most practical period, with warmer temperatures and less winter cold.
Even in the warmer months, the plateau can still bring fast-changing weather, especially in the wetter midsummer period. A visit should be planned with enough water, sun protection, and time for weather changes.
Nature and wildlife
The mountain sits in a high, dry plateau environment with volcanic terrain, open slopes, and broad uplands. Vegetation is typically sparse to patchy at this elevation, with hardy shrubs, grasses, and scattered trees where conditions allow. The landscape is shaped more by exposure and drought than by dense forest.
Wildlife in this part of Arizona commonly includes birds of prey, small mammals, reptiles, and larger desert-adapted animals moving through the uplands. Seasonal moisture brings short-lived growth, but the overall setting remains arid and open.
Guides and organised ascents
For a mountain of this height and terrain, a certified guide is usually not essential for experienced hikers, but it can be useful for route-finding, heat management, and planning in remote country. In the United States, the national mountain guide association is the American Mountain Guides Association, an IFMGA/UIAGM member, and the national alpine club is the American Alpine Club. Examples of established guiding companies include RMI Expeditions and Exum Mountain Guides.
Guided trips in the country generally depend on trip length, group size, and equipment needs. Some peaks in the United States require permits or registration with the land agency, so visitors should check local rules before setting out.
Safety and preparation
Mount Trumbull calls for preparation for heat, dry air, exposure, and changing weather. The plateau setting means long stretches without shade or reliable water, so navigation, sun protection, and enough food and water are important. In colder months, wind and snow can make the summit area more demanding.
For mountain rescue in the United States, the emergency number is 911. Dispatchers alert the local search and rescue team, usually run by the county sheriff or a national park authority.
History and name
Mount Trumbull is associated with the volcanic landscape of the Arizona Strip and the broader Uinkaret volcanic field. It is named for John Trumbull, a Mormon pioneer and rancher who settled in the area in the 19th century. The name reflects the human history of settlement on the edge of the plateau country.
The mountain’s identity is tied to both geology and local history, with a name that has remained linked to the surrounding uplands and ranching past.
FAQ
How high is Mount Trumbull? It reaches 2,441 m.
Where is Mount Trumbull? It is in Mohave County, Arizona, in the United States.
What range is Mount Trumbull part of? It is the high point of the Mount Trumbull range on the Uinkaret Plateau.
What are the nearest peaks? The closest listed neighbours are Craigs Knoll, Mount Logan, Petty Knoll, and Slide Mountain.
Is water available on the way to Mount Trumbull? Plan to carry your own water; this is a dry plateau area with limited reliable surface water, so about 1.5-3 litres for a day is a sensible minimum depending on heat and route length.
When is the best time to go? The summit is above freezing in most months from February to November, with the most comfortable conditions usually in the warmer, drier parts of that season.
Do I need a guide? Not usually for experienced hikers, but a guide can help with remote terrain, weather, and navigation.