Located in Mississippi County, Arkansas, Big Lake National Wildlife Refuge is a national wildlife refuge. The nearest town is Manila, about 6.1 km (3.8 mi) away (Big Lake National Wildlife Refuge lies NE of town).
Big Lake National Wildlife Refuge is an 11,047-acre (45 km2) National Wildlife Refuge located in Mississippi County, Arkansas, managed by the United States Fish and Wildlife Service. It is situated 2 miles (3.2 km) east of Manila, Arkansas, and consists mostly of a shallow lake, swamp, and bottomland hardwood forests. The preservation of habitat for waterfowl in an intensely agricultural region is the primary purpose of the refuge. 6,400 acres (20 km2) of Big Lake was named a National Natural Landmark. 2,144 acres (8 km2) are designated as wilderness.From the Wikipedia article “Big Lake National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Big Lake National Wildlife Refuge the sunrise point swings a long way through the year: about 60° (ENE) at the June solstice and 119° (ESE) in late December. Sunset moves from 300° (WNW) in June to 241° (WSW) in December, and the midday sun climbs to 78° in summer but only 31° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:05 AM | 90° E | 7:13 PM | 271° W | 54° | 12h 08m |
| June solstice (Jun 21) | 5:45 AM | 60° ENE | 8:21 PM | 300° WNW | 78° | 14h 36m |
| September equinox (Sep 22) | 6:49 AM | 89° E | 6:59 PM | 271° W | 54° | 12h 10m |
| December solstice (Dec 21) | 7:08 AM | 119° ESE | 4:51 PM | 241° WSW | 31° | 9h 43m |
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 | 6:43 AM | 7:11 AM | 7:49 AM | 4:32 PM | 5:10 PM | 5:38 PM | 9h 59m |
| February | 6:22 AM | 6:49 AM | 7:24 AM | 5:07 PM | 5:42 PM | 6:09 PM | 10h 54m |
| March | 6:47 AM | 7:12 AM | 7:46 AM | 6:34 PM | 7:08 PM | 7:34 PM | 11h 56m |
| April | 6:02 AM | 6:28 AM | 7:02 AM | 7:00 PM | 7:34 PM | 8:00 PM | 13h 06m |
| May | 5:27 AM | 5:56 AM | 6:32 AM | 7:23 PM | 8:00 PM | 8:28 PM | 14h 04m |
| June | 5:14 AM | 5:44 AM | 6:22 AM | 7:41 PM | 8:19 PM | 8:49 PM | 14h 35m |
| July | 5:27 AM | 5:56 AM | 6:33 AM | 7:41 PM | 8:18 PM | 8:47 PM | 14h 22m |
| August | 5:53 AM | 6:20 AM | 6:55 AM | 7:17 PM | 7:52 PM | 8:19 PM | 13h 32m |
| September | 6:18 AM | 6:44 AM | 7:18 AM | 6:36 PM | 7:09 PM | 7:35 PM | 12h 26m |
| October | 6:42 AM | 7:08 AM | 7:42 AM | 5:51 PM | 6:26 PM | 6:52 PM | 11h 18m |
| November | 6:10 AM | 6:38 AM | 7:15 AM | 4:17 PM | 4:54 PM | 5:22 PM | 10h 17m |
| December | 6:36 AM | 7:04 AM | 7:44 AM | 4:09 PM | 4:49 PM | 5:17 PM | 9h 44m |
Local time (America/Chicago), 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 Big Lake National Wildlife Refuge, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 5.7 hours on a moonless night), and the core peaks around 25° above the southern horizon. Our light-pollution model puts the sky at about Bortle 4 (rural / suburban transition), good enough for detailed Milky Way images.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 0° | — |
| February | 4:48 AM – 5:18 AM | 0.5 | 15° | SE → SE |
| March | 3:53 AM – 5:43 AM | 1.8 | 22° | SE → SSE |
| April | 1:54 AM – 4:54 AM | 3.0 | 25° | SE → S |
| May | 12:00 AM – 4:10 AM | 4.2 | 25° | SE → SSW |
| June | 10:09 PM – 3:49 AM | 5.7 | 25° | SE → SW |
| July | 10:03 PM – 2:23 AM | 4.3 | 25° | SSE → SW |
| August | 9:26 PM – 12:26 AM | 3.0 | 25° | S → SW |
| September | 8:36 PM – 10:26 PM | 1.8 | 22° | SSW → SW |
| October | 7:51 PM – 8:21 PM | 0.5 | 15° | SW → SW |
| November | Below 10° in darkness | — | 2° | — |
| 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: 4 Bortle 4 — Rural / suburban transition. Light domes are visible in several directions; the Milky Way is clear but lacks detail near the horizon. Modeled zenith brightness ≈ 21.23 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show September as the clearest month (about 40% average cloud cover) and February as the cloudiest (62%). 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 | 74 | 77 | 82 | 93 | 93 | 105 | 107 | 110 | 100 | 96 | 85 | 77 |
| Low °F | 6 | 6 | 7 | 23 | 34 | 53 | 59 | 54 | 43 | 28 | 18 | 8 |
| Precip. (in) | 3.4 | 4.7 | 4.9 | 5.1 | 5.4 | 3.4 | 3.7 | 3.5 | 3.1 | 4.1 | 4.2 | 4.9 |
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 Big Lake National Wildlife Refuge, closest first.
State Park
Ghost Town
State Park
State ParkFAQ
When is the best time to photograph Big Lake National Wildlife Refuge?
What time is golden hour at Big Lake National Wildlife Refuge?
Where does the sun rise and set at Big Lake National Wildlife Refuge?
Can you see the Milky Way from Big Lake National Wildlife Refuge?
Do you need a permit to photograph at Big Lake National Wildlife Refuge?
How far is Big Lake National Wildlife Refuge from Manila?
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.