McDowell Sonoran Preserve

Excessive Heat Warning in Effect

Dangerously hot temperatures occur in the valley every summer. Daytime temperatures will quickly rise to a life-threatening level. To reduce your need of rescue, or worse, please follow these guidelines:

  • LEAVE YOUR DOG AT HOME. The desert heat can kill your dog with little or no warning and you can be charged with a felony for animal cruelty. Temperatures over 90°F can quickly turn deadly for your dog. In fact, heat stress in dogs has occurred in the Preserve at temperatures in the low 80's.
  • Visit the Preserve early in the day. Gates open roughly 30 minutes before sunrise.
  • Bring more water than you think you will need. When it is half gone, turn around.
  • Begin hydrating your body prior to your outing, even the night before.
  • Wear sturdy footwear, a hat, sunscreen and light-colored clothing that covers your skin.
  • Take a printed map with you.
  • Plan a route that fits your physical abilities and the extremely hot conditions.
  • Bring a fully-charged cell phone.
  • Be alert and watch for rattlesnakes.

COVID-19 Guidelines in the Preserve

The Scottsdale McDowell Sonoran Preserve is open.

Please follow these guidelines:

  • No picnicking or public gatherings are allowed
  • Maintain a 6 foot separation from other users at all times
  • Keep moving and avoid congregating in groups
  • Communicate and be polite to others on the trail, while maintaining separation. There are many first time visitors at this time

Practice good hygiene:

  • Wash your hands frequently
  • Avoid touching your face
  • Sneeze or cough into a tissue of inside of your elbow
  • If you feel sick, stay home

Keep yourself from needing emergency medical care by taking ample water, a map, phone and wearing sturdy footwear, hat and sunscreen. Rattlesnakes are very active this time of year. Stay on the trail at all times and stay alert. Refer to the City’s COVID-19 website for updates and recommendation.

Lost Dog Trailhead Equestrian Parking Area Closed from Oct. 7 - at least Nov. 1.

The parking area is being resurfaced. Equestrian parking is available at the Gateway Trailhead for those who need it.

The Scottsdale McDowell Sonoran Preserve is a large, permanently protected, sustainable desert habitat that includes an interconnected network of non-motorized, multi-use trails (hike/bike/horse) accessed from multiple trailhead locations.

Electric Bikes Prohibited

Electric bikes are not allowed in the Scottsdale McDowell Sonoran Preserve. Electric bikes are motorized, and Chapter 21 of the Scottsdale Revised Code prohibits motorized vehicles from being used in the Preserve, with the exception of motorized wheelchairs, or vehicles in designated trailhead parking areas.

Rattlesnakes in the Scottsdale Preserve

With the warm spring weather upon us, the cold-blooded reptiles of the Preserve have emerged from hiding, including rattlesnakes. Rattlesnakes are an important part of the Preserve ecosystem and are a protected species. The Preserve is a wild area inhabited by a variety of wild animals, which are inherently unpredictable. While you visit their natural habitat, it is important to remember a few tips to assure a safe experience.

To avoid encountering rattlesnakes in the Preserve:

  • Stay alert and aware of your surroundings at all times
  • Travel only on designated and posted trails
  • Do not place your hands or feet in places you cannot see
  • Wear long pants and boots
  • Keep your dog on a leash at all times

If you encounter a rattlesnake on the trail:

  • Most importantly – LEAVE IT ALONE
  • Move slowly and deliberately, and back away to a safe distance
  • Rattlesnakes will not chase you
  • Provide a caution to other hikers in the area about the presence of the snake
  • If the snake is in a developed area, like a trailhead, contact the Preserve staff (480-312-7013) and they will do their best to relocate the snake.

If a rattlesnake bite occurs:

  • Remain calm and call 911
  • Immobilize the extremity and keep it below the heart
  • Remove jewelry and tight fitting clothing in case of swelling
  • Decrease total body activity as is feasible
  • Get medical help as soon as possible

New Trailhead Improvements

The City of Scottsdale is moving forward with design and construction of the Pima Dynamite Trailhead located on the northeast corner of Pima Road and Dynamite Boulevard. This trailhead will provide parking and support amenities for public recreational access to the extensive network of trails in the northern region of the Preserve for hiking, biking, trail running, and horseback riding. Construction is expected to begin in 2019 and completed in 2020.

Trail Maps


View South Area Map Watch Video
Gateway, Tom's Thumb, Lost Dog Wash, Sunrise, Ringtail Trailheads

View North/Central Area MapWatch Video 
Brown's Ranch, Pima Dynamite, Granite Mountain, Fraesfield, Tom's Thumb Trailheads

Pickup Hardcopy

You can pickup hard copies at any of the trailhead locations or at:

Community Services Office
7447 E. Indian School Rd. Suite 300
Scottsdale, AZ 85251  


Brown's Ranch Trailhead

30301 N. Alma School Rd. Scottsdale, AZ 85262
33° 45' 41.70"N, 111° 50' 32.06"W
Parking, restrooms, shade ramadas, interpretive signage, water, horse trailer parking, hitching rails, water trough, accessible Jane Rau Nature Trail

Fraesfield Trailhead

13400 East Rio Verde Dr. Scottsdale, AZ 85262
33° 45' 41.70"N, 111° 50' 32.06"W
Car and horse trailer parking, restrooms, shade ramada, interpretive and orientation signs, no drinking water

Gateway Trailhead

18333 N. Thompson Peak Pkwy. Scottsdale, AZ 85255
33° 38' 56.23"N, 111° 51' 32.96"W
Parking, restrooms, shade ramadas, water, accessible Bajada Nature Trail, horse-trailer parking, hitching rails, water trough, interpretive signage

Granite Mountain Trailhead

31402 N. 136th St. Scottsdale, AZ 85262
33° 46' 12.52"N, 111° 47' 18.14"W
Car and horse trailer parking, restrooms, shade ramada, interpretive and orientation signs, no drinking water

Lost Dog Wash Trailhead

12601 N. 124th St. Scottsdale, AZ 85259
33° 35' 58.75"N, 111° 48' 46.77"W
Parking, restrooms, shade ramadas, water, horse-trailer parking, hitching rails, water trough, directional signage, accessible nature trail. **Lost Dog Trailhead Equestrian Parking Area Closed from Oct. 7 - at least Nov. 1. The parking area is being resurfaced. Equestrian parking is available at the Gateway Trailhead for those who need it.**

Pima Dynamite Trailhead

28777 N Pima Rd. Scottsdale, AZ 85262
Entrance off of Dynamite Rd.
33° 44' 32.96"N, 111° 53' 15.23"W
Gravel parking, maps, portable restroom, no drinking water
Trailhead improvements are planned for 2021-2022.

Quartz Trailhead

SW corner of McDowell Mountain Ranch Rd. and 104th St.
33° 37' 37.62"N, 111° 51' 23.55"W
Parking, no drinking water

Ringtail Trailhead

12300 block of N. 128th St. Scottsdale, AZ 85259
33° 35' 56.38"N, 111° 48' 17.21"W
Parking, no drinking water

Sunrise Trailhead

12101 N. 145th Way Scottsdale, AZ 85259
33° 35' 45.72"N, 111° 46' 3.9"W
Parking, water, directional signage, limited horse-trailer parking, hitching rails, water trough, shade ramada (overflow lot)

Tom's Thumb Trailhead

23015 N. 128th St. Scottsdale, AZ 85255
33° 41' 21.29"N, 111° 48' 5.305"W
Car and horse trailer parking, restrooms, shade ramada, interpretive signs,  no drinking water


15939 N. 98th St. Scottsdale, AZ 85260
33° 37' 50.1"N, 111° 52' 11.57"W
Horse-trailer parking, water trough, shade ramada, restrooms, public arenas, directional signage. Access the Preserve via the WestWorld trail to the Quartz or Taliesin Trails.


Introduction Gateway Tom's Thumb Brown's Ranch
Preserve Introduction Gateway Trailhead Tom's Thumb Trailhead Brown's Ranch Trailhead
Southern Mountain Region Gateway Loop Trail Marcus Landslide Jane Rau Trail
25th Anniversary Celebration
Bajada Nature Trail
Saguaro Loop Trail


The Preserve is open everyday, sunrise to sunset, free of charge. All trailheads open and close at specific times throughout the year.

Please observe all rules and regulations links to external site including no alcohol, smoking or fires.



Dogs in the Preserve are a privilege. If you bring your dog it is your responsibility to follow the rules:

  • If it is over 90 degrees at any time in your hike, it's too hot for your dog.
  • Dogs must be on hand held leash, no longer than 6 feet at all times.
  • Waste must be pick up immediately and disposed of in a trash container or carried with you until you reach a trash container.
  • Loose or bagged waste on the trail is prohibited.

Heat Warning for Dog Owners

Dogs do not actually sweat. They exchange heat through panting and to a minor degree, through their feet pads. Additionally, our canine friends do not tolerate high environmental temperatures as well as humans do.

Risk groups

The risk groups are much the same as humans: Old, obese, suffer from medical conditions or take medicine. Certain breeds are more susceptible to heat emergencies than other breeds. These breeds with a broad, short skull: Boxers, Bulldogs, Pugs, etc.

Causes of heat emergency in dogs:

  • Strenuous exercise in hot, humid weather
  • Elevated temperatures from atmospheric temps and hot surface contact
  • Sidewalk/natural rock surface can radiate very high temps 
  • 90 degree atmospheric temp/ potential surface temp of 135 degrees

Warning Signs

  • Begins with heavy panting/signs of difficulty breathing
  • Tongue/gums appears bright red with thick saliva
  • Skin elasticity (when pinched, does not snap back)
  • Worsens if dog vomits, becomes unsteady, lethargic, unwilling to move (Core temp in the 104 degree range)
  • Heat Stroke:
    • lips/membranes become blue/gray
    • Rapid on-set collapse, seizure, unconsciousness and death

What to do

  • Immediate cooling of body with water, cool packs to groin, where legs meet the body, neck
  • Remove from heat immediately
  • Get to Veterinarian (Consequences of heat emergency = kidney failure, heart irregularities, other system failures, death)


  • Know your dog’s limitations/abilities
  • Assess the environmental conditions
  • Carry plenty of water for both you and your dog
  • Cool vests and trail booties for dogs are available and are very efficient


Special Use

A Special Use Permit is required for special activities and organized events including professional photography and filming, special events, weddings and other ceremonies, and community club activities such as group hikes and rides. Please fill out a special use permit request form to begin the process. It typically takes 7 to 10 business days for a permit to be issued. Call 480-312-7013 for more information or read the Preserve's Special Use Guidelines. (PDF)


Guiding is allowed in the McDowell Sonoran Preserve with a permit. Permits are granted through an application process held once a year.

Upon approval of an application, a permit fee of $150 must be paid, plus pre-paid use days equal to $5 per client and a $10 Administrative Fee. Permits will be valid for one year, from Aug. 1 to July 31. Please read the Preserve's Guidelines for Guiding Permits (PDF) for more information.

For more information or questions please contact Yvonne Massman at You may also call 480-312-7013. Thank you!

Guided Hikes

For information on guided hikes of Scottsdale's Preserve, visit the McDowell Sonoran Conservancy. links to external site

Need Help?


General City Information/Speak to a Citizen Service Specialist

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