Lake Isom National Wildlife Refuge — a national wildlife refuge in Lake County, Tennessee — is a rewarding subject for landscape photographers. It sits roughly 7.8 km (4.8 mi) NE of Ridgely.
Lake Isom is a small natural lake located in Lake County, Tennessee immediately south of Reelfoot Lake. It is fed by Running Reelfoot Bayou, the outlet stream of Reelfoot Lake. Like Reelfoot, it was formed in the 1811–1812 New Madrid earthquakes and it is very shallow and swampy. The entire lake and its environs, covering 1,846 acres (747 ha) comprise the Lake Isom National Wildlife Refuge and have been such since 1938. Lake Isom has suffered from considerable siltation in the past, making it even shallower and swampier than it already was. Improved agricultural practices in the area are slowing this development, however. Due to the long-term federal ownership and its smaller size, Lake Isom is almost entirely undeveloped and is not surrounded with parks, restaurants, and hunting and fishing camps as is Reelfoot. Motors on boats on the lake are also limited to 10 horsepower.From the Wikipedia article “Lake Isom”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Lake Isom 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 77° in summer but only 30° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:02 AM | 90° E | 7:10 PM | 271° W | 54° | 12h 08m |
| June solstice (Jun 21) | 5:41 AM | 60° ENE | 8:19 PM | 300° WNW | 77° | 14h 38m |
| September equinox (Sep 22) | 6:46 AM | 89° E | 6:56 PM | 271° W | 54° | 12h 10m |
| December solstice (Dec 21) | 7:06 AM | 119° ESE | 4:47 PM | 241° WSW | 30° | 9h 41m |
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 | 6:41 AM | 7:09 AM | 7:48 AM | 4:28 PM | 5:06 PM | 5:34 PM | 9h 57m |
| February | 6:20 AM | 6:46 AM | 7:22 AM | 5:03 PM | 5:39 PM | 6:05 PM | 10h 53m |
| March | 6:44 AM | 7:09 AM | 7:44 AM | 6:31 PM | 7:05 PM | 7:31 PM | 11h 56m |
| April | 5:58 AM | 6:25 AM | 6:59 AM | 6:57 PM | 7:32 PM | 7:58 PM | 13h 07m |
| May | 5:23 AM | 5:52 AM | 6:29 AM | 7:21 PM | 7:58 PM | 8:26 PM | 14h 06m |
| June | 5:10 AM | 5:40 AM | 6:19 AM | 7:39 PM | 8:18 PM | 8:48 PM | 14h 37m |
| July | 5:23 AM | 5:52 AM | 6:30 AM | 7:39 PM | 8:16 PM | 8:46 PM | 14h 24m |
| August | 5:49 AM | 6:16 AM | 6:52 AM | 7:15 PM | 7:50 PM | 8:17 PM | 13h 33m |
| September | 6:15 AM | 6:41 AM | 7:15 AM | 6:33 PM | 7:07 PM | 7:33 PM | 12h 26m |
| October | 6:39 AM | 7:05 AM | 7:40 AM | 5:48 PM | 6:23 PM | 6:49 PM | 11h 18m |
| November | 6:08 AM | 6:36 AM | 7:13 AM | 4:13 PM | 4:51 PM | 5:18 PM | 10h 15m |
| December | 6:34 AM | 7:03 AM | 7:42 AM | 4:05 PM | 4:45 PM | 5:13 PM | 9h 42m |
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 Lake Isom 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 3 (rural sky), good enough for detailed Milky Way images.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 0° | — |
| February | 4:46 AM – 5:16 AM | 0.5 | 14° | SE → SE |
| March | 4:01 AM – 5:41 AM | 1.7 | 22° | SE → SSE |
| April | 1:53 AM – 4:53 AM | 3.0 | 25° | SE → S |
| May | 11:59 PM – 4:09 AM | 4.2 | 25° | SE → SSW |
| June | 10:08 PM – 3:48 AM | 5.7 | 25° | SE → SW |
| July | 10:03 PM – 2:23 AM | 4.3 | 25° | SSE → SW |
| August | 9:25 PM – 12:15 AM | 2.8 | 25° | S → SW |
| September | 8:34 PM – 10:14 PM | 1.7 | 22° | SSW → SW |
| October | 7:49 PM – 8:19 PM | 0.5 | 15° | 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: 3 Bortle 3 — Rural sky. Some light domes sit on the horizon, but the Milky Way still looks complex overhead. Modeled zenith brightness ≈ 21.56 mag/arcsec².
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 (65%). 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 | 72 | 73 | 80 | 86 | 90 | 106 | 105 | 105 | 100 | 93 | 84 | 74 |
| Low °F | 3 | -1 | 7 | 24 | 36 | 50 | 57 | 52 | 42 | 28 | 15 | -4 |
| Precip. (in) | 3.5 | 4.7 | 4.7 | 5.1 | 5.0 | 3.6 | 3.8 | 3.1 | 3.4 | 4.1 | 4.3 | 4.7 |
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
- 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.
- A 400–600 mm lens (or a crop body) is the usual tool for birds.
- Bring a spare battery — cold weather and long exposures drain them fast.
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 Lake Isom National Wildlife Refuge, closest first.
State Park
Ghost Town
National Wildlife Refuge
State ParkFAQ
When is the best time to photograph Lake Isom National Wildlife Refuge?
What time is golden hour at Lake Isom National Wildlife Refuge?
Where does the sun rise and set at Lake Isom National Wildlife Refuge?
Can you see the Milky Way from Lake Isom National Wildlife Refuge?
Do you need a permit to photograph at Lake Isom National Wildlife Refuge?
How far is Lake Isom National Wildlife Refuge from Ridgely?
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.