San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

Parks in Arizona

San Bernardino National Wildlife Refuge

Photo: National Museum of Natural History, Smithsonian Institution (S. Upson) / CC0

Parks 3,769 ft Bortle 1 Solitude: 90/100 (remote)
The 2,369-acre refuge lies along the international border with Mexico in southeast Arizona's Cochise County. It was established in 1982 to protect what remained of the unique wetlands of the San Bernardino ciénega, a wetland that was historically considered the largest, most extensive in the region. This large marsh serves as a migratory corridor for wildlife between the mountain ranges of Mexico to the Rocky Mountains of Arizona and New Mexico. 

Near Douglas, AZ in Arizona

What to Pack for San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

Pack with the terrain and wildlife in mind, and you'll be ready for anything here.

A well-prepared pack for San Bernardino National Wildlife Refuge covers 3 categories: essential, wildlife gear, terrain gear.

Essential

  • Water (minimum 2L) — Even cool-weather hiking demands steady hydration, as exertion and altitude increase water loss faster than most expect.
  • Navigation (map/GPS/compass) — Even well-marked trails have confusing junctions, especially in fog or snow; a GPS unit or downloaded map keeps you on route.
  • Sun protection (sunglasses, sunscreen) — Quality sunglasses prevent snow blindness and reduce eye strain during long days on exposed trails or ridgelines.
  • First aid kit — Adhesive bandages, antiseptic, and athletic tape handle the most common trail injuries and weigh under a pound.
  • Extra food — Blood sugar drops fast during sustained effort outdoors, and having a reserve keeps your body and mind sharp.
  • Headlamp with extra batteries — Batteries drain faster in cold weather; carrying spares ensures you won't be left in the dark when you need light most.
  • Fire starter — Starting a fire boosts morale and provides light, warmth, and a way to purify water in an emergency.
  • Emergency shelter (space blanket) — If an injury forces you to stop moving, a reflective blanket prevents the rapid heat loss that leads to hypothermia.
  • Knife or multi-tool — In a survival situation, a blade lets you process tinder, build shelter, and prepare food.
  • Extra clothing layer — Wet clothing accelerates cooling; a dry backup layer can prevent hypothermia when conditions turn.

Wildlife Gear

  • Hiking buddy (avoid solo) — Solo hikers are more vulnerable to predatory behavior from mountain lions, which typically avoid groups.
  • Noise maker — A loud whistle doubles as a rescue signal, serving both wildlife safety and emergency communication.
  • Gaiters — Beyond snakes, gaiters also protect against thorns, brush, and ticks in overgrown trail sections.
  • First-aid snakebite kit — A lightweight pressure bandage and marker for tracking swelling take up minimal space but provide critical aid.

Terrain Gear

  • Wide-brim hat — Desert and alpine environments with little tree cover leave you fully exposed; a hat is your primary shade source.
  • Sunscreen SPF50+ — Apply 30 minutes before exposure and reapply every 2 hours; sweating and pack straps rub sunscreen off faster than expected.
  • Extra water (desert) — Even well-mapped springs can go dry after low-snowpack years; always carry surplus and check recent trip reports.

Seasonal Gear

  • Spring: Camera, Wildflower field guide
  • Fall: Camera, Binoculars (foliage viewing)

Activities & Best Time to Visit San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

The Desert terrain here lends itself to a range of outdoor activities throughout the year.

The mix of Desert terrain and Semi-Arid conditions here supports everything from birdwatching, hiking, photography.

The scenery here earns a 60/100 photography rating — Exceptional dark sky (Bortle 1-2) and 2 excellent meteor showers.

Activities

  • birdwatching — Quiet observation often leads to rewarding encounters.
  • hiking — With sturdy footwear and preparation, trails open up expansive views and quiet solitude.
  • photography — Outdoor photography invites you to slow down and frame the beauty around you.
  • picnicking — Whether lakeside or in a meadow, it's a relaxed way to savor both the setting and the company.
  • rv_camping — Hookups and designated sites make extended stays convenient.
  • walking — Perfect for all ages, a casual walk can turn any outdoor space into a relaxing nature experience.
  • wildlife_viewing — Bring binoculars and patience — nature often rewards careful, respectful observers.

Best months: May, Jun, Jul, Aug, Sep

Terrain: Desert — Rocky outcrops, sand, and dry washes are common features.

Wildlife Safety at San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

Before heading out, it helps to know which wildlife to be cautious around.

The danger score of 30/10 at San Bernardino National Wildlife Refuge accounts for Mountain lions, Venomous snakes, Remote (219mi from city) in the area.

Danger rating: 30/100 (based on terrain difficulty, wildlife presence, weather exposure, and remoteness) moderate
  • Mountain lions
  • Venomous snakes
  • Remote (219mi from city)
UV risk: extreme (Southern latitude (31N), Desert (exposed))
Photo score: 60/100
  • Exceptional dark sky (Bortle 1-2)
  • 2 excellent meteor showers
  • Fall foliage
  • Spring wildflowers

Venomous Snakes

0 venomous snake species are found in this area: .

  • 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 San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

The Desert terrain here supports a rich ecosystem worth noticing as you explore.

The ecosystem around San Bernardino National Wildlife Refuge is defined by its Desert landscape, supporting everything from Emory oak to Brewer's Blackbird and Red-winged Blackbird.

Trees (1)

  • Emory oak
    Emory oak — Leaves are glossy dark green above.

Shrubs (4)

  • Creosote Bush
    Creosote Bush — Bright yellow flowers bloom after rain.
  • evergreen sumac
    evergreen sumac — Leaves are thick and leathery.
  • soaptree yucca
    soaptree yucca — Creamy white bell-shaped flowers bloom in late spring.

Other Plants (5)

  • fishhook barrel cactus
  • ocotillo
  • Palmer's agave
  • Banana Yucca
  • Wheeler sotol

Mammals (2)

  • White-tailed Deer
    White-tailed Deer — Bucks grow antlers annually, shedding them each winter.
  • Rock Squirrel
    Rock Squirrel — Often stands upright on rocks to scan for predators.

Birds (30)

  • Brewer's Blackbird
    Brewer's Blackbird — Iridescent purple-green sheen
  • Red-winged Blackbird
    Red-winged Blackbird — Glossy breeding male plumage
  • Sandhill Crane
    Sandhill Crane — Long legs and neck
  • Chipping Sparrow
    Chipping Sparrow — Gray breast
  • Yellow-headed Blackbird
    Yellow-headed Blackbird — White wing patches

Reptiles (11)

  • Yarrow's Spiny Lizard
    Yarrow's Spiny Lizard — Typically 5–8 inches long.
  • Mojave Rattlesnake
    Mojave Rattlesnake — Typically 3–4 feet long.
  • Western Black-tailed Rattlesnake
    Western Black-tailed Rattlesnake — Usually 2.5–4 feet long.
  • Greater Earless Lizard
    Greater Earless Lizard — Typically 4–6 inches long including tail.
  • Western Diamond-backed Rattlesnake
    Western Diamond-backed Rattlesnake — Adults commonly 3–5 feet long.

Amphibians (1)

  • Couch's Spadefoot
    Couch's Spadefoot

Insects (4)

  • Pipevine Swallowtail
    Pipevine Swallowtail
  • Arizona Mantis
    Arizona Mantis
  • Vella fallax
  • White-lined Sphinx
    White-lined Sphinx

Nature Bingo at San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

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

Wildlife Challenge

Botany Challenge

San Bernardino National Wildlife Refuge (SW, 0mi), Cochise Climate & Sun

The numbers behind the best (and worst) times to visit San Bernardino National Wildlife Refuge.

Month-by-month temperatures at San Bernardino National Wildlife Refuge range from °F to °F.

Climate type: Semi-Arid

Annual avg temp: 64.7°F

Annual precipitation: 12.3 in

With an average annual temperature of 64.7°F and 12.3 inches of precipitation, San Bernardino National Wildlife Refuge has warm, dry conditions. Summer highs average around 82°F, while winter lows drop to 47°F.

Best months to visit: Feb, Mar, Apr, May, Oct, Nov.

Month Avg Temp Precip
Jan 47°F 0.8 in
Feb 51°F 0.6 in
Mar 56°F 0.5 in
Apr 63°F 0.1 in
May 71°F 0.2 in
Jun 81°F 0.7 in
Jul 82°F 3.0 in
Aug 80°F 2.8 in
Sep 76°F 1.3 in
Oct 67°F 0.7 in
Nov 55°F 0.7 in
Dec 47°F 0.9 in

Daylight & Sun Times

Daylight ranges from 10.1 hours in winter to 14.2 hours in summer — a difference of 4.1 hours.

Summer: 5:11 AM – 7:22 PM

Winter: 7:08 AM – 5:15 PM

Winter Solstice: Sunrise 7:08 AM, Sunset 5:15 PM Golden hour from 4:39 PM
Summer Solstice: Sunrise 5:11 AM, Sunset 7:22 PM Golden hour from 6:46 PM
Spring Equinox: Sunrise 6:28 AM, Sunset 6:24 PM Golden hour from 5:52 PM
Fall Equinox: Sunrise 6:00 AM, Sunset 6:24 PM Golden hour from 5:52 PM

San Bernardino National Wildlife Refuge (SW, 0mi), Cochise Trip Planning & Access

Time to plan the details — access, cost, and travel information for your visit.

Access to San Bernardino National Wildlife Refuge is primarily via Phoenix, 219 miles away.

Nearest city: Phoenix (219 mi)
Estimated fuel cost: $54.84 (28 mpg, $3.5/gallon)
Carbon footprint: 177.3 kg CO2 (round trip by car)

Visitor Friendliness

Accessibility: dog-friendly (likely_allowed), family-friendly (excellent), elderly-friendly (highly_suitable).

  • Dogs: likely_allowed — No restrictions found
  • Families: excellent
  • Elderly: highly_suitable
  • Strollers: excellent (100/100)
  • Beginners: Perfect for beginners (Moderate difficulty (+5), Good information available (+5))
  • Accessibility: Generally accessible to most visitors (90/100)

Places Near San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

Looking for more? Here's what else is close by.

The region around San Bernardino National Wildlife Refuge is rich with options — 6 nearby destinations are worth exploring.

Stargazing & Night Sky at San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

Clear nights in this area reveal more stars than most people expect.

Light pollution at San Bernardino National Wildlife Refuge is Excellent dark-sky site (Bortle 1), which means bright constellations and planets are visible.

Bortle 1 Excellent dark-sky site

Constellations

Key constellations visible from this latitude include Ursa Minor, Cepheus.

  • Ursa Minor
    Ursa Minor — Visible throughout the year in much of the United States, Ursa Minor rotates steadily around the North Celestial Pole.
  • Cepheus
    Cepheus — Though its stars are modest in brightness, Cepheus is visible year-round from most of the U.S.

Meteor Showers

The Geminids peaks around December 13-14 and is the best meteor shower visible from here.

  • Geminids
    Geminids — peaks December 13-14 (excellent)

    Find a dark location away from city lights and give your eyes 20–30 minutes to adjust for peak rates.

  • Quadrantids
    Quadrantids — peaks January 3-4 (excellent)

    Look toward the northern sky after midnight for the highest activity.

  • Perseids
    Perseids — peaks August 11-13 (good)

    Expect fast, bright meteors and occasional fireballs under dark skies.

  • Eta Aquariids
    Eta Aquariids — peaks May 5-6 (good)

    Plan for early morning viewing; activity increases in the hours just before sunrise.

  • Delta Aquariids
    Delta Aquariids — peaks July 28-29 (fair)

    Southern states often see stronger activity due to radiant placement.

Planets

Planets visible to the naked eye from this location:

  • Venus
    Venus — The brightest planet, often called the Morning or Evening Star
  • Jupiter
    Jupiter — The largest planet, bright and steady in the night sky
  • Saturn
    Saturn — Famous for its rings, visible as a golden steady light
  • Mars
    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 San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

What you'll encounter here shifts with the calendar — here's a seasonal overview.

Seasonal changes at San Bernardino National Wildlife Refuge bring — each offering a distinct experience.

Spring Wildflowers

Peak bloom: March - April

Check local park websites for bloom reports

Fall Foliage

Peak color: October 25 – November 15

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 San Bernardino National Wildlife Refuge (SW, 0mi), Cochise

The history of this land reaches back long before it became a recreation destination.

We acknowledge that San Bernardino National Wildlife Refuge is located on the traditional lands of Chiricahua Apache, O’odham Jeweḍ, Ópata (Tegüima-Eudebe-Hoba).

Languages

The languages traditionally spoken in this area include Ópata (Tehuima), Chiricahua.

Data from Native Land Digital

San Bernardino National Wildlife Refuge (SW, 0mi), Cochise Geology & Natural History

Beyond the trails and wildlife, San Bernardino National Wildlife Refuge 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
Cenozoic volcanic rocks
Lithology
ignimbrite(s); felsic volcanic rocks
Age
Cenozoic

Fossils

Fossil Occurrences
15
Unique Species
15
Oldest
121.4 million years ago

Mineral Deposits

Deposit Sites
2
Richness
Low
Minerals Found
Copper, Gold, Silver, Uranium

Endangered Species

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

Wildfire History

This area has a high wildfire risk. Check current fire conditions before visiting and follow all fire restrictions. Campfires may be banned during dry seasons.

Recorded Fires
5
Largest Fire
PUERTO BLANCO (507.4 acres)
Most Recent
2023
Fire Risk
High

Watershed

Watershed
Lower Rio Cajon Bonito

San Bernardino National Wildlife Refuge (SW, 0mi), Cochise Safety & Conditions

Plans set? Check the latest conditions before you head out.

Up-to-date weather, fire, and flood information for the area around San Bernardino National Wildlife Refuge.

Flood zone: Not in a flood zone
Nearest weather station: DOUGLAS 1.0 E, AZ US (15.59 mi)

Coordinates: 31.343747, -109.2585

Packing List Star Guide ↑ Top
San Bernardino National Wildlife Refuge
Arizona · 3,769 ft · Parks · 31.3437°N, -109.2585°W

Emergency Information

In case of emergency: Call 911

Nearest town: Douglas, AZ

Venomous snakes present — Watch where you step ()