Photo: Fredlyfish4 / CC BY-SA 3.0

Attractions 6,210 ft Bortle 2 Solitude: 30/100 (moderate)

In 1922, the United States Bureau of Public Roads undertook a 23-mile road-building project along the Winslow Highway that stretched between Flagstaff and Angel through the Coconino National Forest in Arizona. The largest structure built as part of the project was the Walnut Canyon Bridge.

Near Flagstaff, AZ in Arizona

What to Pack for Arizona: Walnut Canyon Bridge, Coconino

Being properly equipped turns potential hazards into manageable situations.

Pack for terrain, Semi-Arid, and the wildlife considerations above.

Essential

Water (minimum 2L) — Dehydration impairs judgment and endurance long before you feel thirsty; 2L is the minimum for a moderate day hike.
Navigation (map/GPS/compass) — Phone batteries die, cell service disappears, and trail signs get vandalized; a paper map and compass always work.
Sun protection (sunglasses, sunscreen) — UV exposure intensifies at elevation and near reflective surfaces like water and snow; sunburn can happen in under 30 minutes.
First aid kit — Blisters, cuts, and sprains happen on even the easiest trails; basic supplies let you treat problems before they force a retreat.
Extra food — A wrong turn or unexpected storm can extend any outing by hours; extra calories prevent fatigue and poor decision-making.
Headlamp with extra batteries — Trails that seem short in daylight can take twice as long with route-finding or elevation; a headlamp keeps you moving safely after dark.
Fire starter — Hypothermia can set in even during summer at higher elevations; a reliable fire starter provides warmth and a signal for rescuers.
Emergency shelter (space blanket) — A space blanket weighs under two ounces and reflects up to 90% of body heat, buying time in an unplanned overnight.
Knife or multi-tool — From cutting cord to preparing food to improvising gear repairs, a knife is the most versatile tool you can carry.
Extra clothing layer — Mountain weather can shift from sunshine to sleet within an hour; an extra layer prevents dangerous heat loss.

Wildlife Gear

Bear canister — Storing food in a bear canister prevents bears from associating humans with food, which is the leading cause of dangerous bear behavior.
Bear spray — Studies show bear spray stops aggressive bear behavior in over 90% of encounters, outperforming firearms in field effectiveness.
Bear bell — Most bear encounters happen when hikers surprise a bear at close range; a bell provides continuous noise that alerts bears to your presence.
Hiking buddy (avoid solo) — Groups of three or more are almost never involved in serious bear incidents; larger groups make more noise and appear more intimidating.
Noise maker — Clapping, whistling, or using an air horn warns wildlife of your approach, preventing surprise encounters on blind corners.
Gaiters — Snake-proof gaiters provide a physical barrier against venomous bites below the knee, where most strikes occur.
First-aid snakebite kit — While evacuation to a hospital is the priority, a snakebite kit helps you stay calm and follow proper first-aid protocols.

Terrain Gear

SPF50 lip balm — Lips lack melanin and burn faster than other skin; cracked, sunburned lips at altitude are painful and slow to heal.

Seasonal Gear

Winter: Microspikes/traction devices

Wildlife Safety at Arizona: Walnut Canyon Bridge, Coconino

Part of visiting responsibly is understanding the wildlife safety considerations for this area.

Most visitors at Arizona: Walnut Canyon Bridge never have a wildlife incident, but a danger score of 40/10 means preparation matters.

Danger rating: 40/100 (based on terrain difficulty, wildlife presence, weather exposure, and remoteness) moderate

Bears present
Mountain lions
Venomous snakes
Flood zone

Altitude risk: mild

UV risk: high (Mid latitude (35N), Elevated (6,210ft))

Photo score: 45/100

Exceptional dark sky (Bortle 1-2)
3 excellent meteor showers

Bears

This is Black Bear country. Encounters are uncommon but possible, especially during .

Black Bear

A stocky bear with rounded ears, a straight facial profile, and short curved claws built for climbing.

If you encounter one, speak calmly, make yourself appear larger, and back away slowly without running.

Store food properly - use bear boxes or hang food bags
Keep a clean camp - no food scraps
Make noise while hiking
Never approach cubs - mother is nearby
Back away slowly if you encounter a bear

Venomous Snakes

Venomous snakes here include . They're most active during warm months.

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 Arizona: Walnut Canyon Bridge, Coconino

The local ecosystem adds another dimension to any visit here.

The environment here supports 54 documented species across mammals, birds, reptiles, and amphibians.

Wildflowers (2)

Arizona mariposa lily — White to pale pink petals with deep purple markings.
Woods' rose — Pink five-petaled flowers with yellow centers.

Shrubs (2)

Fourwing Saltbush — Foliage often appears silvery due to salt excretion.
fernbush — Foliage has a strong resinous scent when crushed.

Other Plants (5)

Spinystar
Kingcup Cactus
Whipple Cholla
western blue flag
Green Ephedra

Mammals (13)

Pronghorn — A slender tan-and-white ungulate with distinctive black facial markings.
Wapiti — Also known as elk, this large deer has a tan body with dark neck and pale rump patch.
Gunnison's Prairie Dog — A stout, burrowing rodent with tan to brown fur and short tail.
American Bison — A massive, hump-shouldered bovine with shaggy dark brown fur.
White-tailed Antelope Squirrel — A small desert squirrel with tan fur and white stripe along sides.

Birds (30)

House Sparrow — Male with gray crown and black bib
Great-tailed Grackle — Glossy black male with long tail
Hooded Merganser — Male with large white crest
Brewer's Sparrow — Plain gray-brown plumage
Black-throated Sparrow — Bold black throat patch

Reptiles (11)

Plateau Fence Lizard — A medium lizard with spiny scales and gray to brown coloration.
Eastern Collared Lizard — A colorful lizard with two black collar bands around the neck.
Common Side-blotched Lizard — A small slender lizard with mottled brown or gray coloration.
Prairie Rattlesnake — A tan to greenish rattlesnake with dark oval blotches along the back.
Greater Short-horned Lizard — A stout-bodied lizard with short horns on the back of the head.

Amphibians (4)

Northern Leopard Frog
Arizona Tree Frog
Boreal Chorus Frog
Mexican Spadefoot

Insects (4)

Megetra vittata
Painted Lady
Convergent Lady Beetle
White-lined Sphinx

Fungi (1)

Fly Agaric

Other Wildlife (2)

Diablo Mountainsnail
Common Desert Centipede

Nature Bingo at Arizona: Walnut Canyon Bridge, Coconino

Can you spot them all? Check off each species as you find it on your visit.

Wildlife Challenge

Common Raven (bird)
Pronghorn (mammal)
Plateau Fence Lizard (reptile)
Northern Leopard Frog (amphibian)
Spinystar (plant)

Botany Challenge

Achnatherum Pinetorum
Aquilegia Coerulea Var. Pinetorum
Arabis Holboellii Var. Pinetorum
Asclepias Engelmanniana
Echinocereus Engelmannii
Almutaster

Arizona: Walnut Canyon Bridge, Coconino Climate & Sun

Reference data: temperatures, precipitation, and daylight hours by month.

The annual average temperature here is 50.9°F, with 15.4 inches of precipitation.

Climate type: Semi-Arid

Annual avg temp: 50.9°F

Annual precipitation: 15.4 in

With an average annual temperature of 50.9°F and 15.4 inches of precipitation, Arizona: Walnut Canyon Bridge has mild, dry conditions. Summer highs average around 72°F, while winter lows drop to 33°F.

Best months to visit: May, Jun, Jul, Aug, Sep, Oct.

Winter 33°

1.3"

Spring 48°

0.8"

Summer 72°

2.3"

Fall 52°

1.1"

Month	Avg Temp	Precip
Jan	33°F	1.3 in
Feb	36°F	1.4 in
Mar	42°F	1.2 in
Apr	48°F	0.8 in
May	56°F	0.5 in
Jun	66°F	0.2 in
Jul	72°F	2.3 in
Aug	70°F	2.8 in
Sep	63°F	1.5 in
Oct	52°F	1.1 in
Nov	41°F	1.1 in
Dec	32°F	1.2 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: 5:10 AM – 7:41 PM

Winter: 7:26 AM – 5:14 PM

Winter Solstice: Sunrise 7:26 AM, Sunset 5:14 PM Golden hour from 4:35 PM

Summer Solstice: Sunrise 5:10 AM, Sunset 7:41 PM Golden hour from 7:03 PM

Spring Equinox: Sunrise 6:38 AM, Sunset 6:32 PM Golden hour from 5:58 PM

Fall Equinox: Sunrise 6:07 AM, Sunset 6:34 PM Golden hour from 6:01 PM

Places Near Arizona: Walnut Canyon Bridge, Coconino

The area around Arizona: Walnut Canyon Bridge has plenty more to offer.

If you're exploring this part of Arizona, these nearby spots complement a visit to Arizona: Walnut Canyon Bridge.

Stargazing & Night Sky at Arizona: Walnut Canyon Bridge, Coconino

After a day outdoors, the evening sky here is worth a look.

On clear nights, the Bortle class 2 skies above Arizona: Walnut Canyon Bridge reveal constellations and bright planets.

Bortle 2 Typical truly dark site

Constellations

From Arizona: Walnut Canyon Bridge, you can trace Ursa Minor, Cassiopeia, Cepheus across the sky on clear nights.

Ursa Minor — Home to Polaris, the North Star, Ursa Minor forms a small dipper shape that circles the northern sky year-round.
Cassiopeia — Easily recognized by its bright W-shaped pattern, Cassiopeia stands out in northern skies.
Cepheus — Cepheus appears as a faint house-shaped pattern near Polaris in the northern sky.

Meteor Showers

Time your visit around December 13-14 for the Geminids, the strongest meteor shower visible from this latitude.

Geminids — peaks December 13-14 (excellent)
One of the most reliable and active showers of the year; best viewed after 10 PM when Gemini rises higher in the sky.
Quadrantids — peaks January 3-4 (excellent)
This brief but intense shower peaks before dawn; early morning hours offer the best chance to see multiple meteors.
Perseids — peaks August 11-13 (excellent)
A summer favorite with warm nighttime viewing; look northeast after 10 PM.
Eta Aquariids — peaks May 5-6 (good)
Best seen before dawn in the southeastern sky as Aquarius rises.
Delta Aquariids — peaks July 28-29 (fair)
Best viewed after midnight when Aquarius is higher in the southern sky.

Planets

Planets visible to the naked eye from this location:

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

Indigenous Land at Arizona: Walnut Canyon Bridge, Coconino

Before planning your trip, it's worth recognizing the Indigenous peoples connected to this land.

Before this became a recreation area, this land belonged to Hopitutskwa, Pueblos, Ndee/Nnēē: (Western Apache).

Territories

Languages

Indigenous languages connected to this territory include Dilzhę́’é (North), Hopilavayi.

Data from Native Land Digital

Arizona: Walnut Canyon Bridge, Coconino Geology & Natural History

Beyond the trails and wildlife, Arizona: Walnut Canyon Bridge 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: Permian sedimentary rocks
Formation: Kaibab Formation; Toroweap Formation; Coconino Sandstone
Lithology: Major:{sandstone,limestone}, Minor:{chert}
Age: Permian

Fossils

Fossil Occurrences: 187
Unique Species: 108
Oldest: 382.3 million years ago

Mineral Deposits

Deposit Sites: 96
Richness: Exceptional
Minerals Found: Volcanic Materials, Pumice, Sand and Gravel, Construction, Limestone, General, Perlite, Uranium

Endangered Species

Species at Risk: 1478
ESA Endangered: 29
ESA Threatened: 16
Conservation Score: 100/100

Temperature Records

Record High: 102°F (2021-07-11)
Record Low: -37°F (1963-01-12)

Wildfire History

This area has a relatively low wildfire risk, but always follow posted fire regulations.

Recorded Fires: 171
Largest Fire: Pipeline (26,532.4 acres)
Most Recent: 9999
Fire Risk: Extreme

Caves & Karst Features

Feature Types: Carbonate rocks at or near the land surface in a humid climate
Karst Score: 40

Watershed

Watershed: Lower Rio de Flag
Water Quality (Good): 0%
Impaired: 0%

Reported Phenomena

UFO Sightings: 38 (NUFORC)
Bigfoot Reports: 5 (BFRO)
Haunted Places: 8 (Shadowlands)
Eeriness Score: 100/100

Arizona: Walnut Canyon Bridge, Coconino Safety & Conditions

The weather data above tells you what's typical — these links tell you what's happening right now.

Before visiting Arizona: Walnut Canyon Bridge, verify current conditions through these authoritative sources.

Flood zone: In FEMA Special Flood Hazard Area (Zone A)

Nearest weather station: FLAGSTAFF 11.4 ENE, AZ US (2.01 mi)