3.2
(16)
39
hikers
Union Peak Loop
02:35
9.02km
220m
Hiking
Embark on the Union Peak Loop, a moderate hiking route that guides you through the expansive Sonoran desert landscapes. You will encounter a rich variety of desert flora, including towering saguaro, prickly pear, and barrel cacti along the way. The trail features gradual climbs and switchbacks, with some steeper sections…
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Sonoran Preserve
Highlight • Natural
Tip by
4.85 km
Union Peak
Highlight • Summit
Tip by
7.28 km
Desert Tortoise Trail
Highlight • Trail
Tip by
9.02 km
End point
Way Types & Surfaces
Way Types
8.93 km
< 100 m
< 100 m
Surfaces
5.24 km
3.69 km
< 100 m
Sign up to see more specific route details
Sign up for free
Elevation
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Today
Wednesday 27 May
33°C
18°C
0 %
Additional weather tips
Max wind speed: 22.0 km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
Frequently Asked Questions
Where is the Union Peak Loop located?
This specific Union Peak Loop is located within the Phoenix Sonoran Desert Preserve in Arizona. It offers stunning views of the surrounding desert landscape and nearby Dixie Mountain.
What is the best time of year to hike this trail?
The optimal time to hike the Union Peak Loop is between October and May. This avoids the extreme heat of the Arizona summer, making for a much more enjoyable experience.
Is the Union Peak Loop suitable for beginners or families?
Yes, the Union Peak Loop is generally considered an easy to moderate trail, making it suitable for beginners and children. While the ascent to Union Peak itself involves some steep sections and switchbacks, the overall loop is manageable for those with basic hiking fitness.
Are dogs allowed on the trail?
Yes, dogs are generally allowed on trails within the Phoenix Sonoran Desert Preserve. However, they must be kept on a leash at all times. Please remember to pack out any waste.
What kind of terrain and scenery can I expect?
You'll hike through wide-open Sonoran desert landscapes, abundant with saguaro, prickly pear, and barrel cacti. The path includes gradual climbs and switchbacks, with some steeper sections as you ascend to the peak. The summit offers panoramic 360-degree views of the area.
What are the main points of interest along the route?
The primary highlight is reaching the summit of Union Peak, which provides expansive 360-degree views and features a summit registry. The trail also takes you through the beautiful Sonoran Preserve, showcasing diverse desert flora.
Does the trail intersect with other paths?
Yes, the route incorporates sections of several other trails. You'll find yourself on parts of the Desert Tortoise Trail, Valle Verde Trail, Hawk's Nest Trail, Great Horned Owl Trail, and Dixie Mountain Loop during your hike.
Are there any permits or entrance fees required for the Phoenix Sonoran Desert Preserve?
Generally, there are no entrance fees or permits required for day-use hiking in the Phoenix Sonoran Desert Preserve. However, it's always a good idea to check the official City of Phoenix Parks and Recreation website for the latest regulations before your visit.
What's an insider tip for experiencing the best views?
For a particularly scenic experience, consider timing your hike to reach the summit around the golden hour in the evening. The soft light enhances the desert colors and makes for breathtaking panoramic views.
Where can I park to access the trailhead?
The Union Peak Loop can typically be accessed from various trailheads within the Phoenix Sonoran Desert Preserve, such as the Desert Vista Trailhead. Parking is usually available at these designated trailheads.
Is the trail usually busy?
The Union Peak Loop is known for being a relatively quiet trail, not usually busy, which offers a sense of solitude compared to some other popular Phoenix area hikes.