Browns Park National Wildlife Refuge is a national wildlife refuge in Moffat County, Colorado. The nearest town is Vernal, about 64 km (40 mi) away (Browns Park National Wildlife Refuge lies NE of town).
Browns Park National Wildlife Refuge is a 13,450-acre (5,440 ha) U.S. National Wildlife Refuge located in northwestern Colorado. It is located in Moffat County in the extreme northwestern corner of the state, in an isolated mountain valley of Browns Park on both sides of the Green River, approximately 25 miles (40 km) below Flaming Gorge Dam. Established in 1965, the refuge is managed by the United States Fish and Wildlife Service office in Maybell, Colorado. The refuge is approximately 53 miles (85 km) northwest of Maybell on State Highway 318. The refuge consists of bottomland and adjacent benchland. The western border of the refuge is the Colorado-Utah state line. The refuge is surrounded by adjacent lines of the Bureau of Land Management. The refuge contains the site of the former Fort Davy Crockett that was constructed in 1837 to protect trappers against attacks by Blackfoot...From the Wikipedia article “Browns Park National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Browns Park National Wildlife Refuge the sunrise point swings a long way through the year: about 58° (ENE) at the June solstice and 121° (ESE) in late December. Sunset moves from 303° (WNW) in June to 239° (WSW) in December, and the midday sun climbs to 73° in summer but only 26° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:20 AM | 90° E | 7:28 PM | 271° W | 49° | 12h 08m |
| June solstice (Jun 21) | 5:45 AM | 58° ENE | 8:52 PM | 303° WNW | 73° | 15h 06m |
| September equinox (Sep 22) | 7:04 AM | 89° E | 7:15 PM | 271° W | 49° | 12h 11m |
| December solstice (Dec 21) | 7:38 AM | 121° ESE | 4:52 PM | 239° WSW | 26° | 9h 14m |
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 starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:09 AM | 7:39 AM | 8:21 AM | 4:31 PM | 5:13 PM | 5:43 PM | 9h 34m |
| February | 6:43 AM | 7:11 AM | 7:49 AM | 5:13 PM | 5:51 PM | 6:19 PM | 10h 40m |
| March | 7:01 AM | 7:28 AM | 8:05 AM | 6:47 PM | 7:23 PM | 7:50 PM | 11h 54m |
| April | 6:09 AM | 6:37 AM | 7:14 AM | 7:19 PM | 7:55 PM | 8:24 PM | 13h 18m |
| May | 5:28 AM | 5:59 AM | 6:39 AM | 7:48 PM | 8:27 PM | 8:58 PM | 14h 27m |
| June | 5:11 AM | 5:44 AM | 6:26 AM | 8:08 PM | 8:50 PM | 9:23 PM | 15h 05m |
| July | 5:25 AM | 5:58 AM | 6:38 AM | 8:07 PM | 8:47 PM | 9:19 PM | 14h 49m |
| August | 5:57 AM | 6:27 AM | 7:04 AM | 7:38 PM | 8:16 PM | 8:45 PM | 13h 49m |
| September | 6:30 AM | 6:57 AM | 7:33 AM | 6:50 PM | 7:27 PM | 7:54 PM | 12h 29m |
| October | 7:00 AM | 7:28 AM | 8:05 AM | 6:00 PM | 6:37 PM | 7:04 PM | 11h 09m |
| November | 6:34 AM | 7:04 AM | 7:44 AM | 4:18 PM | 4:59 PM | 5:28 PM | 9h 55m |
| December | 7:03 AM | 7:34 AM | 8:18 AM | 4:06 PM | 4:50 PM | 5:21 PM | 9h 16m |
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 Browns Park National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.7 hours on a moonless night), and the core peaks around 20° above the southern horizon. Our light-pollution model puts the sky at about Bortle 1 (excellent dark-sky site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:33 AM – 5:33 AM | 0.0 | 11° | SE → SE |
| March | 4:44 AM – 5:54 AM | 1.2 | 17° | SE → SSE |
| April | 2:44 AM – 4:54 AM | 2.2 | 20° | SE → S |
| May | 12:40 AM – 4:00 AM | 3.3 | 20° | SE → S |
| June | 10:56 PM – 3:36 AM | 4.7 | 20° | SSE → SSW |
| July | 10:47 PM – 2:07 AM | 3.3 | 20° | S → SW |
| August | 9:59 PM – 12:09 AM | 2.2 | 20° | S → SW |
| September | 9:00 PM – 10:10 PM | 1.2 | 17° | SSW → SW |
| October | 8:08 PM – 8:08 PM | 0.0 | 11° | SW → SW |
| November | Below 10° in darkness | — | -1° | — |
| December | Below 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: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.92 mag/arcsec². Aurora needs roughly Kp 7.5+ 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 February as the cloudiest (66%). 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 (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 54 | 59 | 73 | 82 | 95 | 98 | 101 | 98 | 95 | 82 | 67 | 52 |
| Low °F | -15 | -16 | 0 | 15 | 20 | 32 | 43 | 41 | 27 | 0 | 1 | -10 |
| Precip. (in) | 0.7 | 0.7 | 0.7 | 1.1 | 1.2 | 0.8 | 0.7 | 0.8 | 1.3 | 1.1 | 0.7 | 0.7 |
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
- Stay on designated routes and keep a respectful distance — if an animal changes behavior, you are too close.
- 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.
- Tell someone where you're going in remote areas and carry the ten essentials.
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 Browns Park National Wildlife Refuge, closest first.
WaterfallWaterfallWaterfall
Fire Lookout
Dark Sky Place
Natural ArchNatural Arch
Scenic ViewpointScenic ViewpointCampgrounds nearby (Recreation.gov)
- Gates Of Lodore Campground12.1 km (7.5 mi) · reservable
- Gates Of Lodore Campground12.3 km (7.6 mi)
- Bridge Hollow Campground20 km (13 mi) · reservable
- Indian Crossing Campground21 km (13 mi) · reservable
FAQ
When is the best time to photograph Browns Park National Wildlife Refuge?
What time is golden hour at Browns Park National Wildlife Refuge?
Where does the sun rise and set at Browns Park National Wildlife Refuge?
Can you see the Milky Way from Browns Park National Wildlife Refuge?
Do you need a permit to photograph at Browns Park National Wildlife Refuge?
How far is Browns Park National Wildlife Refuge from Vernal?
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.