Location and surroundings
Reiley Peak is in the Winchester Mountains, part of the Bisbee-Tombstone Area in the Southeast Arizona Ranges, within the Southwest Basins and Ranges of the Intermountain West in the North American Cordillera. It is in the United States, in Arizona, and administratively in Cochise County. At 2,252 m, it is the highest peak in the Winchester Mountains and the range high point.
The surrounding country is typical of southeastern Arizona mountain terrain: dry lower slopes, rocky ridges, and open uplands with broad views between the hills. In the state and county context it is a high summit, but the area is still part of a larger mountain-and-basin landscape rather than a single isolated massif.
Neighbouring peaks
The closest named peaks and passes show how Reiley Peak sits among a compact group of summits in the Winchester Mountains and nearby ranges. It is higher than all of the nearest named neighbours listed here, including Javelina Peak and Muskhog Mountain to the south.
- Javelina Peak — 1,946 m, 3.1 km south
- Muskhog Mountain — 2,187 m, 3.9 km south
- Reiley Hill — 1,595 m, 7.0 km northeast
- The Mesas — 1,638 m, 7.6 km northwest
- Hooker Butte — 1,378 m, 12.2 km north
- Saddle Mountain — 1,877 m, 12.4 km northwest
- Baker Hill — 1,601 m, 13.8 km northwest
- Wildcat Peak — 1,414 m, 15.0 km west
The view from the summit
From Reiley Peak, the highest peaks within 25 km include several larger or nearby summits that help define the skyline. Bassett Peak lies 21.0 km to the northwest and is the highest of the nearby peaks listed. Other visible high points in the wider area include Square Mountain to the southeast, Cherry Spring Peak to the west, Ash Creek Black Hills to the north, Sierra Blanca to the west, and Soza Mesa to the west.
These distances suggest a summit view across a mix of mountain blocks, mesas and lower basins, with the Winchester Mountains forming only one part of a broader southeastern Arizona landscape.
The range
Reiley Peak belongs to the Winchester Mountains, whose high point is also Reiley Peak itself. The range has five named peaks, and Reiley Peak ranks first by elevation among them. In the wider mountain hierarchy it sits within the Bisbee-Tombstone Area and the Southeast Arizona Ranges, part of the mountain systems of the southwestern United States.
Because it is the range high point, Reiley Peak is the main elevation reference for the Winchester Mountains. The surrounding named peaks are lower, which makes the summit an important marker for the local ridge line and drainage pattern.
Climate and weather
Climate estimates from NASA POWER for 2001–2020 suggest that the summit is cool but not severely cold for much of the year. The warmest month is June, at about 21 °C on average, while the coldest is January, at about 3 °C. Mean temperatures stay above freezing in every month. The surrounding area receives about 350 mm of precipitation a year, with the wettest month in July at about 80 mm and the driest in May at about 5 mm.
In this part of Arizona, weather hazards usually come from heat, strong sun, dry air, sudden summer storms and brief periods of poor visibility after rain. In the wetter season, runoff can make washes and low crossings difficult, while exposed ridges can be windy.
Best time to visit
Because the summit stays above freezing on average all year, Reiley Peak can be visited in any season, but conditions vary a lot. The drier part of the year is generally the better time for travel on open ridges, while July brings the wettest conditions and a higher chance of storms. Spring and autumn usually offer the most comfortable temperatures for hiking in this elevation band.
Summer can be hot on the lower approaches even when the summit itself is moderate, so early starts are sensible. In winter, the summit average remains above freezing, but cold mornings, wind and occasional snow or ice can still affect footing.
Nature and wildlife
The mountains around Reiley Peak sit in a dry southeastern Arizona setting where rocky slopes, scrub, grassland patches and open woodland can appear as elevation changes. At this height, the summit area is likely to support more sparse vegetation than the lower country, with plants adapted to sun, wind and seasonal moisture.
Wildlife in this region commonly includes desert and mountain species that use the slopes and canyons for cover and movement. Hikers should expect heat, sharp rock, and limited shade on many parts of the approach. Travel planning should focus on terrain, weather and access conditions.
Guides and organised ascents
For a peak like Reiley Peak, a certified guide is usually not essential for experienced hikers in stable weather, but it can be useful if you are unfamiliar with desert navigation, heat management or rough off-trail terrain. In the United States, the national 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 working in the mountains of the country include RMI Expeditions and Exum Mountain Guides.
Guided trips in the United States are usually arranged through guide services, local land managers or tourist offices in the nearest towns. A guided ascent typically includes route planning, risk management and the right technical or safety equipment, with cost depending on trip length, group size, hut nights if any, and gear needs.
Safety and preparation
Reiley Peak calls for preparation for heat, sun exposure, dry air and uneven ground. Even though the summit is not extremely high, the terrain and climate can make a day on the mountain more demanding than the elevation alone suggests. Carry enough water, wear sun protection, and plan for a route that may be longer and rougher than it looks on a map.
For mountain rescue in the United States, the emergency number is 911. Dispatchers can alert the local search and rescue team, usually run by the county sheriff or a national park authority.
Interesting facts
Reiley Peak is the highest of the five named peaks in the Winchester Mountains and the range high point. The nearest higher peak listed in the wider area is Bassett Peak, 21.0 km to the northwest. Among the nearby summits, Muskhog Mountain is the closest that comes near Reiley Peak’s height, but it is still lower at 2,187 m.
The peak also sits in a landscape where the nearest named neighbours are mostly lower ridges, hills and buttes, which makes Reiley Peak the main elevation reference for its local mountain block.
FAQ
How high is Reiley Peak? Reiley Peak rises to 2,252 m.
Where is Reiley Peak located? It is in Cochise County, Arizona, in the United States, within the Winchester Mountains.
What range does Reiley Peak belong to? It is part of the Winchester Mountains, in the Bisbee-Tombstone Area of southeastern Arizona.
Is Reiley Peak the highest mountain in its range? Yes. It is the highest of the five named peaks in the Winchester Mountains and the range high point.
What are the nearest peaks to Reiley Peak? The closest listed peaks are Javelina Peak 3.1 km south, Muskhog Mountain 3.9 km south, and Reiley Hill 7.0 km northeast.
Is there water on the way to Reiley Peak? Plan to carry your own. In this dry mountain country, a day hike usually calls for about 1.5–3 litres per person, more in hot weather or on a longer route.
Will my mobile phone work on Reiley Peak? Coverage in the hills is patchy and depends on the operator. On an open summit a signal is more likely than in valleys or behind ridges. 112 reaches emergency services over any available network, and maps should be downloaded before setting out.