Mammoth Cave National Park is a cave in Edmonson County, Kentucky. It lies in or next to Mammoth Cave National Park, so park hours, fees and rules apply. It sits roughly 13.9 km (8.6 mi) WNW of Cave City.
Mammoth Cave National Park is a national park of the United States in south-central Kentucky. It encompasses portions of Mammoth Cave, the longest known cave system in the world. The park's 52,007 acres (21,046 ha) are located primarily in Edmonson County, with small areas extending eastward into Hart and Barren counties. The Green River runs through the park, with a tributary called the Nolin River feeding into the Green just inside the park. The cave system has formally been known as the Mammoth–Flint Ridge Cave System since 1972, when a connection was discovered between Mammoth Cave and the even longer system under Flint Ridge to the north. As of 2025, more than 426 miles (686 km) of passageways had been surveyed, over 1.5 times longer than the second-longest cave system, Mexico's Ox bel ha underwater cave.From the Wikipedia article “Mammoth Cave National Park”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Mammoth Cave National Park the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 119° (ESE) in late December. Sunset moves from 301° (WNW) in June to 241° (WSW) in December, and the midday sun climbs to 76° in summer but only 29° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:49 AM | 90° E | 6:56 PM | 271° W | 53° | 12h 08m |
| June solstice (Jun 21) | 5:25 AM | 59° ENE | 8:09 PM | 301° WNW | 76° | 14h 43m |
| September equinox (Sep 22) | 6:33 AM | 89° E | 6:43 PM | 271° W | 53° | 12h 10m |
| December solstice (Dec 21) | 6:55 AM | 119° ESE | 4:31 PM | 241° WSW | 29° | 9h 36m |
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
Caves are lit artificially — show caves have fixed lighting, so a fast lens and high ISO beat flash, which flattens formations.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:29 AM | 6:58 AM | 7:37 AM | 4:12 PM | 4:51 PM | 5:19 PM | 9h 53m |
| February | 6:08 AM | 6:34 AM | 7:10 AM | 4:49 PM | 5:25 PM | 5:51 PM | 10h 50m |
| March | 6:30 AM | 6:56 AM | 7:31 AM | 6:18 PM | 6:52 PM | 7:18 PM | 11h 56m |
| April | 5:44 AM | 6:11 AM | 6:46 AM | 6:45 PM | 7:19 PM | 7:46 PM | 13h 09m |
| May | 5:08 AM | 5:37 AM | 6:14 AM | 7:09 PM | 7:46 PM | 8:16 PM | 14h 10m |
| June | 4:54 AM | 5:25 AM | 6:03 AM | 7:28 PM | 8:07 PM | 8:38 PM | 14h 42m |
| July | 5:07 AM | 5:37 AM | 6:15 AM | 7:27 PM | 8:05 PM | 8:35 PM | 14h 29m |
| August | 5:34 AM | 6:02 AM | 6:37 AM | 7:02 PM | 7:38 PM | 8:06 PM | 13h 36m |
| September | 6:01 AM | 6:27 AM | 7:02 AM | 6:20 PM | 6:54 PM | 7:20 PM | 12h 27m |
| October | 6:27 AM | 6:53 AM | 7:28 AM | 5:34 PM | 6:09 PM | 6:35 PM | 11h 16m |
| November | 5:56 AM | 6:24 AM | 7:02 AM | 3:58 PM | 4:36 PM | 5:03 PM | 10h 11m |
| December | 6:23 AM | 6:52 AM | 7:32 AM | 3:48 PM | 4:29 PM | 4:58 PM | 9h 37m |
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 Mammoth Cave National Park, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.5 hours on a moonless night), and the core peaks around 24° 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 | — | -1° | — |
| February | 4:42 AM – 5:02 AM | 0.3 | 13° | SE → SE |
| March | 3:48 AM – 5:18 AM | 1.5 | 20° | SE → SSE |
| April | 1:51 AM – 4:31 AM | 2.7 | 24° | SE → S |
| May | 11:50 PM – 3:50 AM | 4.0 | 24° | SE → SSW |
| June | 10:00 PM – 3:30 AM | 5.5 | 24° | SE → SW |
| July | 9:54 PM – 2:04 AM | 4.2 | 24° | SSE → SW |
| August | 9:14 PM – 12:04 AM | 2.8 | 24° | S → SW |
| September | 8:22 PM – 10:02 PM | 1.7 | 20° | SSW → SW |
| October | 7:35 PM – 7:55 PM | 0.3 | 14° | 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 ≈ 21.6 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 46% average cloud cover) and February as the cloudiest (70%). 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 | 70 | 72 | 81 | 83 | 91 | 108 | 107 | 103 | 102 | 96 | 83 | 72 |
| Low °F | -1 | -9 | -2 | 22 | 34 | 47 | 52 | 51 | 36 | 25 | 8 | -8 |
| Precip. (in) | 3.6 | 4.8 | 4.4 | 5.6 | 5.5 | 4.9 | 4.9 | 3.8 | 3.9 | 4.5 | 4.2 | 4.8 |
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 cave
- Never touch formations — skin oils stop their growth.
- Follow White-nose Syndrome decontamination rules where posted to protect bats.
- Many show caves restrict tripods on tours; ask in advance or bring a small beanbag.
- Use manual focus with focus peaking in low light.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Cave interiors stay at a constant temperature year-round; summer tours fill up, so book ahead.
Suggested gear: Fast lens (f/1.8–f/2.8), High-ISO camera, Small beanbag. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
National Park Service rules. Under federal law (54 U.S.C. 100905), still photography in National Park Service areas needs a permit only when it (1) takes place where members of the public are not allowed, (2) uses models, sets or props that are not part of the location's natural or cultural resources or administrative facilities, or (3) would cause the park to incur additional administrative costs to monitor the activity. Ordinary visitor and most landscape photography needs no permit. Commercial filming rules are separate and have changed in recent years — confirm current requirements with the park before a paid shoot.
Drones: Launching, landing or operating unmanned aircraft (drones) is prohibited in National Park Service units under a 2014 Superintendent's closure (36 CFR 1.5), except where a park has issued specific written approval. Flying from outside the boundary over park land can also violate park rules and disturb wildlife.
Nearby photo spots
Other locations within 25 km of Mammoth Cave National Park, closest first.
Cave
Cave
Cave
State Park
CaveCampgrounds nearby (Recreation.gov)
- Mammoth Cave Campground938 m · reservable
- Maple Springs3.5 km (2.2 mi) · reservable
- Mammoth Picnic Shelters4.3 km (2.7 mi) · reservable
- Dog Creek Day Use (Ky)15.1 km (9.4 mi) · reservable
- Dog Creek (Ky)15.1 km (9.4 mi) · reservable
FAQ
When is the best time to photograph Mammoth Cave National Park?
What time is golden hour at Mammoth Cave National Park?
Where does the sun rise and set at Mammoth Cave National Park?
Can you see the Milky Way from Mammoth Cave National Park?
Do you need a permit to photograph at Mammoth Cave National Park?
How far is Mammoth Cave National Park from Cave City?
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.