Puerco Loop, Petrified Forest National Park
Trails in Arizona
Photo: daveynin / CC BY 2.0
Part of Petrified Forest National Park
What to Pack for Puerco Loop, Petrified Forest National Park
The right gear makes all the difference — here's a packing list tailored to this area.
Every item on this list exists because of specific conditions at Puerco Loop — Desert terrain, Arid, and local wildlife.
Essential
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Water (minimum 2L) — Water sources marked on maps may be seasonal or dry; carrying enough to complete your route prevents a dangerous shortfall.
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Navigation (map/GPS/compass) — Getting lost is the leading cause of backcountry search-and-rescue calls; reliable navigation prevents the situation entirely.
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Sun protection (sunglasses, sunscreen) — Prolonged sun exposure causes headaches, fatigue, and heat exhaustion that can cut a trip short or create a medical emergency.
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First aid kit — Remote locations mean longer response times for help; a first aid kit bridges the gap between injury and professional care.
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Extra food — High-energy snacks weigh little but provide crucial fuel if you need to bushwhack out or wait for conditions to improve.
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Headlamp with extra batteries — Hands-free light is essential for navigating uneven terrain, setting up camp, or signaling for help at night.
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Fire starter — Waterproof matches or a ferro rod weigh almost nothing and can be the difference between a cold night and a survivable one.
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Emergency shelter (space blanket) — Wind and rain strip heat faster than most people realize; a compact emergency shelter blocks both.
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Knife or multi-tool — A multi-tool handles problems you can't predict: jammed zippers, tangled line, first-aid tape cutting, or gear fixes on the trail.
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Extra clothing layer — A lightweight fleece or puffy stuffs small but provides critical insulation if temperatures drop unexpectedly.
Wildlife Gear
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Hiking buddy (avoid solo) — A companion can help with first aid, signaling, and decision-making if a wildlife encounter turns serious.
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Noise maker — Group noise is especially important in dense brush or near berry patches where bears may be feeding and less alert.
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Gaiters — Thick gaiters deflect fangs before they reach skin, buying critical time in areas with rattlesnakes or copperheads.
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First-aid snakebite kit — Knowing how to immobilize a limb, mark swelling progression, and avoid harmful folk remedies can improve outcomes.
Climate Gear
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Layering system (wide temp swings) — A base layer, insulating mid-layer, and wind shell cover the full range of temperatures you might encounter in a single day.
Terrain Gear
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Wide-brim hat — At high elevation where UV is 10-12% stronger per 1,000 feet of gain, a hat provides constant passive protection.
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Sunscreen SPF50+ — Sunburn isn't just discomfort — severe burns cause fluid loss, fatigue, and impaired thermoregulation that compound in remote settings.
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Extra water (desert) — In arid heat, your body loses 1-2 liters per hour during exertion; running out of water in the desert is life-threatening.
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SPF50 lip balm — High elevation, snow glare, and desert sun amplify UV exposure on exposed facial skin, especially lips.
Seasonal Gear
- Spring: Camera, Wildflower field guide
- Fall: Camera, Binoculars (foliage viewing)
- Winter: Microspikes/traction devices
Activities & Best Time to Visit Puerco Loop, Petrified Forest National Park
The Desert terrain here lends itself to a range of outdoor activities throughout the year.
Outdoor recreation at Puerco Loop centers on hiking, with the May, Jun, Jul, Aug, Sep months offering the best conditions.
With a photography score of 65/100, Puerco Loop offers Exceptional dark sky (Bortle 1-2) and 3 excellent meteor showers worth capturing.
Activities
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hiking — Hiking ranges from gentle nature walks to challenging summit climbs.
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photography — Golden hour and dramatic weather can transform ordinary scenes into striking images.
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picnicking — Picnicking turns a scenic overlook or shady grove into a memorable gathering spot.
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running — Trail running combines endurance with changing terrain and natural views.
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walking — Walking lets you slow down and notice details — wildflowers, birdsong, shifting light through trees.
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wildlife_viewing — Early mornings and dusk offer the best chances to quietly spot native wildlife.
Best months: May, Jun, Jul, Aug, Sep
Terrain: Desert — Cacti, shrubs, and drought-tolerant plants dominate arid landscapes.
Wildlife Safety at Puerco Loop, Petrified Forest National Park
Most wildlife encounters are positive, but a few potential hazards are worth knowing about.
A danger score of 30/10 means Puerco Loop requires moderate preparation compared to the average trail.
- Mountain lions
- Venomous snakes
- Remote (168mi from city)
- Exceptional dark sky (Bortle 1-2)
- 3 excellent meteor showers
- Fall foliage
- Spring wildflowers
Venomous Snakes
Watch your step — Western Diamondback, Mojave, Sidewinder are present in the Desert habitat around Puerco Loop.
Typically gray to brown with sharply defined dark diamonds bordered in pale scales.
Remove constrictive items and remain calm; do not cut, suck, or apply ice to the wound.
Color ranges from greenish-gray to brown, often blending with desert soils.
Keep the victim calm and monitor breathing while awaiting medical care.
Light tan or sandy coloration with darker blotches along the back.
Do not attempt to capture the snake; focus on reaching emergency care quickly.
- Watch where you step and place hands
- Stay on trails
- Wear boots and long pants in snake country
- Do not reach under rocks or logs
- If bitten: stay calm, immobilize limb, seek medical help immediately
- Do NOT: cut wound, suck venom, apply tourniquet, ice, or alcohol
Nature & Wildlife at Puerco Loop, Petrified Forest National Park
The Desert terrain here supports a rich ecosystem worth noticing as you explore.
The plant life here ranges from in the canopy to golden mariposa lily and Flaxflowered Ipomopsis along the trail edges.
Wildflowers (5)
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golden mariposa lily — Three broad petals forming an open bowl. -
Flaxflowered Ipomopsis — Fine threadlike leaves along upright growth. -
Stansbury's Cliffrose — Creamy white five-petaled flowers with yellow centers. -
Pinkflower Hedgehog Cactus — Bright pink funnel-shaped flowers near stem tips. -
Rose Heath — Pink urn-shaped flowers clustered along stems.
Shrubs (2)
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Fourwing Saltbush — Foliage often appears silvery due to salt excretion. -
tree cholla — Spines detach easily and cling to fur or clothing. The plant produces greenish to yellow flowers in spring.
Other Plants (5)
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Whipple Cholla
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Plains Pricklypear
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Desert Prince's Plume
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crispleaf buckwheat
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silverleaf nightshade
Mammals (9)
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Pronghorn — Both sexes have short, curved horns with a forward prong. -
Mule Deer — Coat ranges from tawny brown in summer to gray-brown in winter. -
Desert Cottontail — Lean body suited to arid habitats. -
Coyote — Narrow muzzle and upright ears. -
White-tailed Antelope Squirrel — White underside and underside of tail.
Birds (10)
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Rock Pigeon — White or mottled urban color morphs -
Horned Lark — Small black feather tufts -
Common Raven — Broad wings with fingered primaries -
Sagebrush Sparrow — Brown streaked back -
American Kestrel — Blue-gray wings in male
Reptiles (13)
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Eastern Collared Lizard — Males display bright green and blue hues during breeding season. -
Plateau Fence Lizard — Males show blue belly patches. -
Common Side-blotched Lizard — Distinct dark blotch behind the front legs on each side. -
Gopher Snake — Head is slightly broader than the neck and often patterned with dark facial markings. -
Greater Short-horned Lizard — Color matches surrounding soil in browns and grays.
Amphibians (3)
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Great Plains Toad -
Mexican Spadefoot -
Couch's Spadefoot
Insects (4)
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Rough Harvester Ant -
Purslane Moth -
White-lined Sphinx -
Pallid-winged Grasshopper
Other Wildlife (1)
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Common Desert Centipede
Nature Bingo at Puerco Loop, Petrified Forest National Park
Can you spot them all? Check off each species as you find it on your visit.
Wildlife Challenge
Botany Challenge
Puerco Loop, Petrified Forest National Park Climate & Sun
Month-by-month climate and daylight information for Puerco Loop.
With 8.9 inches of annual precipitation and an average of 55.3°F, Puerco Loop has Arid conditions.
Climate type: Arid
Annual avg temp: 55.3°F
Annual precipitation: 8.9 in
With an average annual temperature of 55.3°F and 8.9 inches of precipitation, Puerco Loop has mild, arid conditions. Summer highs average around 77°F, while winter lows drop to 35°F.
Best months to visit: Apr, May, Jun, Sep, Oct.
| Month | Avg Temp | Precip |
|---|---|---|
| Jan | 35°F | 0.7 in |
| Feb | 40°F | 0.6 in |
| Mar | 46°F | 0.7 in |
| Apr | 53°F | 0.4 in |
| May | 62°F | 0.4 in |
| Jun | 72°F | 0.2 in |
| Jul | 77°F | 1.3 in |
| Aug | 75°F | 1.5 in |
| Sep | 68°F | 1.0 in |
| Oct | 56°F | 0.8 in |
| Nov | 44°F | 0.6 in |
| Dec | 35°F | 0.7 in |
Daylight & Sun Times
Daylight ranges from 9.8 hours in winter to 14.5 hours in summer — a difference of 4.7 hours.
Summer: 5:04 AM – 7:33 PM
Winter: 7:19 AM – 5:09 PM
Puerco Loop, Petrified Forest National Park Trip Planning & Access
Ready to visit? Here's what to know about getting here and what it'll cost.
Trip planning for Puerco Loop starts with the 168-mile route from Phoenix.
Visitor Friendliness
Visitor friendliness: families (excellent), dogs (likely_allowed), elderly (highly_suitable).
- Dogs: likely_allowed — No restrictions found
- Families: excellent
- Elderly: highly_suitable (Paved surface)
- Strollers: excellent (100/100)
- Beginners: Good starting point (Moderate difficulty (+5))
- Accessibility: Generally accessible to most visitors (90/100)
Places Near Puerco Loop, Petrified Forest National Park
If you're in the area, these nearby destinations are worth considering too.
From campgrounds to trails to scenic attractions, 4 destinations surround Puerco Loop.
Nearby Trails
Stargazing & Night Sky at Puerco Loop, Petrified Forest National Park
If you're staying past sunset, the stargazing conditions here are worth planning around.
For anyone who stays past sunset, the Bortle 2 conditions here reward patience with constellations and bright planets.
Constellations
Look for Ursa Minor, Cepheus — all visible from this location depending on the season.
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Ursa Minor — This compact constellation contains Polaris at the end of its handle, a reliable guide to true north. -
Cepheus — Named for a mythological king, this constellation sits beside Cassiopeia and is circumpolar in northern latitudes.
Meteor Showers
For meteor viewing, the Geminids (December 13-14) offers the best show at this location.
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Geminids — peaks December 13-14 (excellent)Cold December air often means clear skies—look overhead after midnight for bright, slow-moving meteors.
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Quadrantids — peaks January 3-4 (excellent)Bundle up—January nights are frigid, but dark skies can produce bright fireballs.
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Perseids — peaks August 11-13 (excellent)Peak activity typically builds after midnight when Perseus climbs higher.
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Eta Aquariids — peaks May 5-6 (good)Southern U.S. observers often get better rates due to the radiant's position.
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Delta Aquariids — peaks July 28-29 (fair)This steady shower rewards patient observers in dark, moonless conditions.
Planets
Planets visible to the naked eye from this location:
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Venus — The brightest planet, often called the Morning or Evening Star -
Jupiter — The largest planet, bright and steady in the night sky -
Saturn — Famous for its rings, visible as a golden steady light -
Mars — The Red Planet, recognizable by its reddish-orange hue
Equipment Guide
- Naked eye: Venus, Jupiter, Saturn, Mars, Mercury (with care)
- Binoculars: Jupiter moons, Uranus, Saturn rings (barely)
- Small telescope: Saturn rings, Jupiter bands, Mars surface features, Neptune
Viewing Tips
- Check planets rise/set times for your specific date
- Planets appear along the ecliptic (zodiac path)
- Planets don't twinkle like stars - steady light
- Venus and Jupiter are unmistakable - brightest objects after Moon
- Use a stargazing app to confirm planet positions
- Best viewing: when planet is highest in sky (transit)
Best Viewing Months
- Evening: Oct, Nov, Dec, Jan, Feb
- Morning: Jul, Aug, Sep
Seasonal Highlights at Puerco Loop, Petrified Forest National Park
Each season brings something different to this area.
From wildflower blooms in spring to fall foliage in autumn, Puerco Loop rewards visitors in every season.
Spring Wildflowers
Peak bloom: March - April
Check local park websites for bloom reports
Fall Foliage
Peak color: October 15 – November 5
Best trees for color: Maple, Oak, Aspen
Higher elevations peak 1-2 weeks earlier
Bird Migration
Spring peak: March - April
Fall peak: October - November
Best spots: Wetlands, coastlines, mountain ridges
Indigenous Land at Puerco Loop, Petrified Forest National Park
Long before trails were marked and campgrounds built, this land was home to Indigenous peoples.
This area's history extends far beyond recreation — it is the traditional territory of Diné Bikéyah, Pueblos, Shiwinna (Zuni).
Territories
Languages
2 Indigenous languages are associated with the peoples of this area: Shiwi’ma Bena:we, Diné Bizaad.
Data from Native Land Digital
Puerco Loop, Petrified Forest National Park Geology & Natural History
Beyond the trails and wildlife, Puerco Loop sits within a landscape shaped by millions of years of geological processes. Here's what researchers and surveys have documented about this area.
Bedrock Geology
- Rock Type
- Chinle Formation
- Formation
- Chinle Formation
- Lithology
- Major:{mudstone}, Minor:{sandstone,conglomerate}
- Age
- Triassic
Fossils
- Fossil Occurrences
- 277
- Unique Species
- 95
- Oldest
- 237 million years ago
Mineral Deposits
- Deposit Sites
- 8
- Richness
- Moderate
- Minerals Found
- Uranium, Sand and Gravel, Construction, Helium, Halite, Gypsum-Anhydrite, Potassium, Semiprecious Gemstone
Endangered Species
- Species at Risk
- 1478
- ESA Endangered
- 29
- ESA Threatened
- 16
- Conservation Score
- 100/100
Caves & Karst Features
- Feature Types
- Sedimentary rocks known to locally contain piping or other pseudokarst features, evaporite_basin
- Karst Score
- 50
Watershed
- Watershed
- Rim Tank
- Water Quality (Good)
- 0%
- Impaired
- 0%
Puerco Loop, Petrified Forest National Park Safety & Conditions
Conditions change fast outdoors — bookmark these official sources for your visit.
The data above tells you what's typical — these links tell you what's happening at Puerco Loop right now.
Coordinates: 34.975918, -109.793954