Located in Linn County, Kansas, Marais des Cygnes National Wildlife Refuge is a national wildlife refuge. It sits roughly 7.5 km (4.7 mi) NE of Pleasanton.
Marais des Cygnes National Wildlife Refuge (NWR) is located in Linn County, Kansas along the Marais des Cygnes River. The 7,500 acre (30 km2) Refuge was established in 1992 to protect one of the northwesternmost examples of bottomland hardwood forest in the United States as well as the largest contiguous tract of bottomland hardwood forest in Kansas. Marais des Cygnes means "marsh of swans" in French. High quality stands of bottomland hardwood forest, upland oak-hickory forest, tallgrass prairie, seasonal and permanent wetlands, and riverine areas are found throughout the refuge. These unique areas harbor many species that are considered nationally or regionally threatened such as cerulean warbler, broadhead skink, flat floater mussel (Anodonta suborbiculata), and Mead's milkweed.From the Wikipedia article “Marais des Cygnes National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Marais des Cygnes National Wildlife Refuge the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 120° (ESE) in late December. Sunset moves from 301° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 75° in summer but only 28° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:23 AM | 90° E | 7:31 PM | 271° W | 52° | 12h 08m |
| June solstice (Jun 21) | 5:56 AM | 59° ENE | 8:46 PM | 301° WNW | 75° | 14h 50m |
| September equinox (Sep 22) | 7:07 AM | 89° E | 7:17 PM | 271° W | 52° | 12h 10m |
| December solstice (Dec 21) | 7:32 AM | 120° ESE | 5:02 PM | 240° WSW | 28° | 9h 30m |
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 | 7:06 AM | 7:35 AM | 8:15 AM | 4:43 PM | 5:23 PM | 5:51 PM | 9h 48m |
| February | 6:43 AM | 7:10 AM | 7:47 AM | 5:21 PM | 5:57 PM | 6:24 PM | 10h 47m |
| March | 7:04 AM | 7:31 AM | 8:06 AM | 6:51 PM | 7:26 PM | 7:52 PM | 11h 55m |
| April | 6:16 AM | 6:44 AM | 7:19 AM | 7:19 PM | 7:55 PM | 8:22 PM | 13h 11m |
| May | 5:39 AM | 6:09 AM | 6:46 AM | 7:45 PM | 8:23 PM | 8:53 PM | 14h 14m |
| June | 5:24 AM | 5:56 AM | 6:35 AM | 8:05 PM | 8:44 PM | 9:16 PM | 14h 49m |
| July | 5:37 AM | 6:08 AM | 6:47 AM | 8:04 PM | 8:42 PM | 9:13 PM | 14h 34m |
| August | 6:06 AM | 6:34 AM | 7:10 AM | 7:38 PM | 8:14 PM | 8:42 PM | 13h 40m |
| September | 6:35 AM | 7:01 AM | 7:36 AM | 6:54 PM | 7:28 PM | 7:55 PM | 12h 27m |
| October | 7:01 AM | 7:28 AM | 8:04 AM | 6:06 PM | 6:42 PM | 7:09 PM | 11h 14m |
| November | 6:32 AM | 7:01 AM | 7:39 AM | 4:29 PM | 5:08 PM | 5:36 PM | 10h 07m |
| December | 6:59 AM | 7:29 AM | 8:10 AM | 4:19 PM | 5:00 PM | 5:30 PM | 9h 31m |
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 Marais des Cygnes National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.2 hours on a moonless night), and the core peaks around 23° above the southern horizon. Our light-pollution model puts the sky at about Bortle 3 (rural sky), good enough for detailed Milky Way images.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:16 AM – 5:36 AM | 0.3 | 13° | SE → SE |
| March | 4:24 AM – 5:54 AM | 1.5 | 19° | SE → SSE |
| April | 2:29 AM – 4:59 AM | 2.5 | 22° | SE → S |
| May | 12:29 AM – 4:19 AM | 3.8 | 23° | SE → SSW |
| June | 10:41 PM – 3:51 AM | 5.2 | 23° | SE → SSW |
| July | 10:34 PM – 2:34 AM | 4.0 | 23° | SSE → SW |
| August | 9:53 PM – 12:33 AM | 2.7 | 23° | S → SW |
| September | 8:58 PM – 10:28 PM | 1.5 | 19° | SSW → SW |
| October | 8:10 PM – 8:30 PM | 0.3 | 13° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| 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: 3 Bortle 3 — Rural sky. Some light domes sit on the horizon, but the Milky Way still looks complex overhead. Modeled zenith brightness ≈ 21.61 mag/arcsec². Aurora needs roughly Kp 8.0+ 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 42% 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 | 73 | 74 | 82 | 90 | 91 | 105 | 111 | 112 | 105 | 92 | 80 | 72 |
| Low °F | -12 | -6 | -2 | 20 | 31 | 45 | 53 | 49 | 39 | 18 | 9 | -3 |
| Precip. (in) | 1.4 | 2.0 | 2.9 | 4.4 | 5.7 | 5.6 | 4.1 | 4.7 | 3.7 | 3.6 | 2.2 | 1.8 |
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.
- Use auto-loop roads as mobile blinds; animals often tolerate vehicles more than people on foot.
- 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 Marais des Cygnes National Wildlife Refuge, closest first.
FAQ
When is the best time to photograph Marais des Cygnes National Wildlife Refuge?
What time is golden hour at Marais des Cygnes National Wildlife Refuge?
Where does the sun rise and set at Marais des Cygnes National Wildlife Refuge?
Can you see the Milky Way from Marais des Cygnes National Wildlife Refuge?
Do you need a permit to photograph at Marais des Cygnes National Wildlife Refuge?
How far is Marais des Cygnes National Wildlife Refuge from Pleasanton?
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.