Located in Prairie County, Arkansas, Cache River National Wildlife Refuge is a national wildlife refuge. The nearest town is Clarendon, about 10.5 km (6.5 mi) away (Cache River National Wildlife Refuge lies NW of town).
The Cache River National Wildlife Refuge is a 68,993 acre (223 km2) (2014) wildlife refuge in the state of Arkansas managed by the United States Fish and Wildlife Service (FWS). The refuge is one of the Ramsar wetlands of international importance under the Ramsar Convention signed in 1971. It is one of the most important wintering area for ducks and the largest remaining tract of contiguous bottomland hardwood forest on the North American continent. In 2005, a possible sighting of the ivory-billed woodpecker, thought to be extinct, brought attention to the refuge. In 2012, the FWS proposed the gradual expansion of the refuge up to a maximum of 287,574 acres (116,377 ha).From the Wikipedia article “Cache River National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Cache River National Wildlife Refuge the sunrise point swings a long way through the year: about 61° (ENE) at the June solstice and 118° (ESE) in late December. Sunset moves from 300° (WNW) in June to 242° (WSW) in December, and the midday sun climbs to 79° in summer but only 32° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:10 AM | 90° E | 7:18 PM | 271° W | 55° | 12h 07m |
| June solstice (Jun 21) | 5:53 AM | 61° ENE | 8:23 PM | 300° WNW | 79° | 14h 29m |
| September equinox (Sep 22) | 6:54 AM | 89° E | 7:04 PM | 271° W | 56° | 12h 10m |
| December solstice (Dec 21) | 7:10 AM | 118° ESE | 4:59 PM | 242° WSW | 32° | 9h 49m |
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 | 6:46 AM | 7:13 AM | 7:51 AM | 4:40 PM | 5:18 PM | 5:45 PM | 10h 05m |
| February | 6:26 AM | 6:52 AM | 7:27 AM | 5:14 PM | 5:49 PM | 6:15 PM | 10h 57m |
| March | 6:52 AM | 7:17 AM | 7:50 AM | 6:40 PM | 7:14 PM | 7:39 PM | 11h 56m |
| April | 6:08 AM | 6:34 AM | 7:08 AM | 7:04 PM | 7:38 PM | 8:04 PM | 13h 03m |
| May | 5:35 AM | 6:03 AM | 6:39 AM | 7:26 PM | 8:02 PM | 8:30 PM | 13h 59m |
| June | 5:23 AM | 5:53 AM | 6:30 AM | 7:44 PM | 8:21 PM | 8:51 PM | 14h 29m |
| July | 5:35 AM | 6:04 AM | 6:41 AM | 7:44 PM | 8:20 PM | 8:49 PM | 14h 16m |
| August | 6:00 AM | 6:27 AM | 7:01 AM | 7:21 PM | 7:55 PM | 8:22 PM | 13h 28m |
| September | 6:24 AM | 6:49 AM | 7:23 AM | 6:41 PM | 7:14 PM | 7:39 PM | 12h 25m |
| October | 6:46 AM | 7:12 AM | 7:46 AM | 5:58 PM | 6:32 PM | 6:58 PM | 11h 20m |
| November | 6:14 AM | 6:40 AM | 7:17 AM | 4:25 PM | 5:02 PM | 5:29 PM | 10h 21m |
| December | 6:38 AM | 7:06 AM | 7:45 AM | 4:18 PM | 4:57 PM | 5:25 PM | 9h 50m |
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 Cache River National Wildlife Refuge, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 5.8 hours on a moonless night), and the core peaks around 26° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 0° | — |
| February | 4:44 AM – 5:24 AM | 0.7 | 16° | SE → SE |
| March | 3:58 AM – 5:48 AM | 1.8 | 23° | SE → SSE |
| April | 1:57 AM – 4:57 AM | 3.0 | 26° | SE → S |
| May | 12:01 AM – 4:21 AM | 4.3 | 26° | SE → SSW |
| June | 10:08 PM – 3:58 AM | 5.8 | 26° | SE → SW |
| July | 10:03 PM – 2:33 AM | 4.5 | 26° | SSE → SW |
| August | 9:28 PM – 12:38 AM | 3.2 | 26° | S → SW |
| September | 8:40 PM – 10:30 PM | 1.8 | 23° | SSW → SW |
| October | 7:57 PM – 8:37 PM | 0.7 | 16° | SW → SW |
| November | Below 10° in darkness | — | 2° | — |
| December | Below 10° in darkness | — | -18° | — |
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 ≈ 21.69 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 | 75 | 78 | 82 | 90 | 97 | 108 | 109 | 113 | 104 | 100 | 86 | 78 |
| Low °F | 7 | 8 | 8 | 27 | 37 | 54 | 59 | 55 | 45 | 29 | 19 | 10 |
| Precip. (in) | 3.6 | 4.9 | 4.9 | 5.4 | 5.3 | 3.4 | 3.5 | 3.6 | 3.2 | 4.3 | 4.1 | 5.3 |
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
- 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.
- 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.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
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 Cache River National Wildlife Refuge, closest first.
FAQ
When is the best time to photograph Cache River National Wildlife Refuge?
What time is golden hour at Cache River National Wildlife Refuge?
Where does the sun rise and set at Cache River National Wildlife Refuge?
Can you see the Milky Way from Cache River National Wildlife Refuge?
Do you need a permit to photograph at Cache River National Wildlife Refuge?
How far is Cache River National Wildlife Refuge from Clarendon?
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.