"Mule deer grazing in the fall at Cokeville Meadows National Wildlife Refuge in southwestern Wyoming," USA
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41.9500° N110.9830° WBortle 2Denver

Cokeville Meadows National Wildlife Refuge

National Wildlife Refuge in Lincoln County, Wyoming

  • Bortle 2 sky
  • Sunset azimuth 239°–303°
  • Clearest: September
  • Milky Way Mar–Sep
Photo: USFWS · CC BY 2.0 · source

Cokeville Meadows National Wildlife Refuge is a national wildlife refuge in Lincoln County, Wyoming. It sits roughly 41 km (25 mi) WNW of Kemmerer.

Cokeville Meadows National Wildlife Refuge is a National Wildlife Refuge of the United States located in Wyoming. It is managed by the U.S. Fish and Wildlife Service, an agency within the U.S. Department of the Interior. The refuge occupies 26,657 acres (106 km2) of wetlands along a 20 mile (32 km) stretch of the Bear River that is regarded as the finest redhead duck habitat in the region, and one of the best migratory bird sanctuaries in Wyoming. Other bird species known to inhabit the refuge include white-faced ibis, snowy egret, long-billed curlew, great blue heron, American bittern, and black-crowned night heron. bald and golden eagles as well as peregrine falcons nest on the refuge in spring and fall. Cokeville Meadows is currently closed to the public except for a wildlife viewing station, because it is new and has no visitor services. Less than a third of the designated refuge...From the Wikipedia article “Cokeville Meadows National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Nearest town
Kemmerer
41 km (25 mi)
Sky darkness
Bortle 2
Typical truly dark site
Clearest month
September
37% cloud
Milky Way peak
June
4.3 h window
Golden hour (Oct)
6:06 PM
sunset 6:44 PM

Light at Cokeville Meadows National Wildlife Refuge

Live
Sunrise
7:43 AM
Sunset
6:36 PM
Golden hour AM
7:25 AM – 8:21 AM
Golden hour PM
5:58 PM – 6:53 PM
Blue hour AM
7:14 AM – 7:25 AM
Blue hour PM
6:53 PM – 7:04 PM
Full darkness
8:09 PM – 6:11 AM
Moon
Waxing Gibbous · 71%
Moonrise / set
3:57 PM / 1:40 AM
Day length
10h 53m
Sunrise azimuth
103°
Sunset azimuth
257°
000306091215182124
NightTwilightBlue hourGolden hourDaylight

Times in America/Denver. Golden hour = sun −4° to +6°; blue hour = −6° to −4°.

Clouds at sunrise & sunset

NWS

Hourly sky cover from the National Weather Service. 20–60% cloud often gives the most colorful sunrises and sunsets.

Sunrise & sunset directions

At Cokeville Meadows National Wildlife Refuge the sunrise point swings a long way through the year: about 57° (ENE) at the June solstice and 122° (ESE) in late December. Sunset moves from 303° (WNW) in June to 239° (WSW) in December, and the midday sun climbs to 71° in summer but only 25° in winter.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)7:28 AM90° E7:36 PM271° W48°12h 08m
June solstice (Jun 21)5:49 AM57° ENE9:04 PM303° WNW71°15h 14m
September equinox (Sep 22)7:12 AM89° E7:23 PM271° W48°12h 11m
December solstice (Dec 21)7:49 AM122° ESE4:56 PM239° WSW25°9h 07m

Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.

Golden hour & blue hour by month

Wildlife is most active in the first and last two hours of daylight — exactly when the light is warmest.

Month (15th)Blue hour startsSunriseGolden hour endsGolden hour startsSunsetBlue hour endsDaylight
January7:19 AM7:50 AM8:33 AM4:35 PM5:18 PM5:49 PM9h 28m
February6:52 AM7:21 AM8:00 AM5:18 PM5:57 PM6:26 PM10h 36m
March7:09 AM7:37 AM8:14 AM6:54 PM7:31 PM7:59 PM11h 54m
April6:15 AM6:44 AM7:22 AM7:27 PM8:05 PM8:34 PM13h 21m
May5:33 AM6:04 AM6:45 AM7:58 PM8:38 PM9:10 PM14h 33m
June5:14 AM5:49 AM6:31 AM8:19 PM9:02 PM9:36 PM15h 13m
July5:29 AM6:02 AM6:44 AM8:17 PM8:59 PM9:32 PM14h 56m
August6:03 AM6:33 AM7:11 AM7:48 PM8:26 PM8:56 PM13h 53m
September6:37 AM7:05 AM7:42 AM6:58 PM7:35 PM8:03 PM12h 30m
October7:09 AM7:37 AM8:15 AM6:06 PM6:44 PM7:12 PM11h 07m
November6:45 AM7:15 AM7:56 AM4:23 PM5:04 PM5:34 PM9h 50m
December7:14 AM7:46 AM8:31 AM4:09 PM4:54 PM5:26 PM9h 09m

Local time (America/Denver), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.

Milky Way & night sky

From Cokeville Meadows National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.3 hours on a moonless night), and the core peaks around 19° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—-3°—
FebruaryBelow 10° in darkness—10°—
March5:04 AM – 5:54 AM0.815°SSE → SSE
April2:56 AM – 4:56 AM2.019°SE → S
May12:55 AM – 4:05 AM3.219°SE → S
June11:14 PM – 3:34 AM4.319°SSE → SSW
July11:04 PM – 2:14 AM3.219°S → SW
August10:13 PM – 12:13 AM2.018°S → SW
September9:10 PM – 10:10 PM1.015°SSW → SW
OctoberBelow 10° in darkness—10°—
NovemberBelow 10° in darkness—-1°—
DecemberBelow 10° in darkness—-19°—

Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.

Estimated sky darkness: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.82 mag/arcsec². Aurora needs roughly Kp 7.0+ to show low on the northern horizon here.

Weather & best season

Long-term NASA satellite data for this area show September as the clearest month (about 37% average cloud cover) and December as the cloudiest (70%). July is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.

Average cloud cover (%)

JanFebMarAprMayJunJulAugSepOctNovDec
JanFebMarAprMayJunJulAugSepOctNovDec
High °F515469768892979390786653
Low °F-19-19-9718263836220-17-22
Precip. (in)1.31.41.41.81.91.10.71.01.41.41.31.6

Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.

Photography tips for this national wildlife refuge

  • A 400–600 mm lens (or a crop body) is the usual tool for birds.
  • Fast shutter speeds (1/2000 s+) freeze wingbeats; raise ISO rather than lose the shot.
  • Migration peaks bring the largest concentrations — see the birding calendar for this state.
  • Use auto-loop roads as mobile blinds; animals often tolerate vehicles more than people on foot.
  • Stay on designated routes and keep a respectful distance — if an animal changes behavior, you are too close.
  • Check road and trail conditions with the managing agency before you go.

Season: Spring and autumn migration are the highlights; winter brings waterfowl to many southern refuges.

Suggested gear: Telephoto lens (400 mm+), Bean bag for car window, Binoculars. Work out exposures with the depth of field, ND filter and NPF rule calculators.

Permits, drones & access

Drones: Launching or landing drones on National Wildlife Refuge lands generally requires a special use permit from the refuge manager, and wildlife disturbance rules apply everywhere.

Nearby photo spots

Other locations within 40 km of Cokeville Meadows National Wildlife Refuge, closest first.

FAQ

When is the best time to photograph Cokeville Meadows National Wildlife Refuge?
September has the clearest skies on average; june is best for the milky way core. For light, plan around the first and last hour of sun. Spring and autumn migration are the highlights; winter brings waterfowl to many southern refuges.
What time is golden hour at Cokeville Meadows National Wildlife Refuge?
In October the evening golden hour starts around 6:06 PM and ends after sunset at about 6:44 PM; the morning golden hour lasts until about 8:15 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Cokeville Meadows National Wildlife Refuge?
Sunrise azimuth ranges from about 57° in June to 122° in December; sunset ranges from 303° to 239°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Cokeville Meadows National Wildlife Refuge?
Yes — the core is visible from March to September on moonless nights. The estimated sky quality is Bortle 2 (typical truly dark site).
Do you need a permit to photograph at Cokeville Meadows National Wildlife Refuge?
Personal photography from public land rarely needs a permit. Commercial shoots, models, large groups and drones may require permission from the land manager — check before you go.
How far is Cokeville Meadows National Wildlife Refuge from Kemmerer?
About 41 km (25 mi) in a straight line; driving distance is usually longer, especially in mountain terrain.

Sources

Location data: Wikidata, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.