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37.2472° N86.6430° WBortle 3Chicago

Fisher Ridge Cave System Photography Guide

Cave in Butler County, Kentucky

  • Bortle 3 sky
  • Sunset azimuth 241°–301°
  • Clearest: September
  • Milky Way Mar–Sep

Fisher Ridge Cave System — a cave in Butler County, Kentucky — is a classic subject for landscape photographers. The nearest town is Morgantown, about 4.3 km (2.7 mi) away (Fisher Ridge Cave System lies NE of town).

The Fisher Ridge Cave System is a cave system located in Hart County, Kentucky, United States, near Mammoth Cave National Park. As of November 2019 it had been mapped to a length of 130.001 miles (209.216 km), making it the fifth-longest cave in the United States and the eleventh-longest in the world.From the Wikipedia article “Fisher Ridge Cave System”, licensed under CC BY-SA 4.0.
Nearest town
Morgantown
4.3 km (2.7 mi)
Sky darkness
Bortle 3
Rural sky
Clearest month
September
46% cloud
Milky Way peak
June
5.5 h window
Golden hour (Oct)
5:36 PM
sunset 6:11 PM

Light at Fisher Ridge Cave System

Live
Sunrise
7:00 AM
Sunset
6:04 PM
Golden hour AM
6:43 AM – 7:35 AM
Golden hour PM
5:29 PM – 6:21 PM
Blue hour AM
6:33 AM – 6:43 AM
Blue hour PM
6:21 PM – 6:31 PM
Full darkness
7:31 PM – 5:34 AM
Moon
Waxing Gibbous · 70%
Moonrise / set
3:10 PM / 1:09 AM
Day length
11h 05m
Sunrise azimuth
102°
Sunset azimuth
258°
000306091215182124
NightTwilightBlue hourGolden hourDaylight

Times in America/Chicago. Golden hour = sun −4° to +6°; blue hour = −6° to −4°.

Clouds at sunrise & sunset

NWS

Hourly sky cover from the National Weather Service. 20–60% cloud often gives the most colorful sunrises and sunsets.

Sunrise & sunset directions

At Fisher Ridge Cave System 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.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)6:51 AM90° E6:59 PM271° W53°12h 08m
June solstice (Jun 21)5:27 AM59° ENE8:11 PM301° WNW76°14h 44m
September equinox (Sep 22)6:35 AM89° E6:45 PM271° W53°12h 10m
December solstice (Dec 21)6:58 AM119° ESE4:33 PM241° WSW29°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 startsSunriseGolden hour endsGolden hour startsSunsetBlue hour endsDaylight
January6:32 AM7:00 AM7:40 AM4:14 PM4:53 PM5:21 PM9h 53m
February6:10 AM6:37 AM7:13 AM4:51 PM5:27 PM5:53 PM10h 50m
March6:33 AM6:59 AM7:33 AM6:20 PM6:54 PM7:20 PM11h 56m
April5:46 AM6:13 AM6:48 AM6:47 PM7:22 PM7:49 PM13h 09m
May5:10 AM5:39 AM6:16 AM7:12 PM7:49 PM8:18 PM14h 10m
June4:56 AM5:27 AM6:05 AM7:30 PM8:09 PM8:40 PM14h 43m
July5:08 AM5:39 AM6:17 AM7:30 PM8:08 PM8:38 PM14h 29m
August5:36 AM6:04 AM6:39 AM7:04 PM7:40 PM8:08 PM13h 36m
September6:03 AM6:29 AM7:04 AM6:22 PM6:56 PM7:22 PM12h 27m
October6:29 AM6:55 AM7:30 AM5:36 PM6:11 PM6:37 PM11h 16m
November5:59 AM6:26 AM7:05 AM4:00 PM4:38 PM5:05 PM10h 11m
December6:25 AM6:54 AM7:35 AM3:50 PM4:31 PM5:00 PM9h 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 Fisher Ridge Cave System, 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.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—-1°—
February4:45 AM – 5:05 AM0.313°SE → SE
March3:51 AM – 5:21 AM1.520°SE → SSE
April1:54 AM – 4:34 AM2.724°SE → S
May11:53 PM – 3:53 AM4.024°SE → SSW
June10:03 PM – 3:33 AM5.524°SE → SW
July9:57 PM – 2:07 AM4.224°SSE → SW
August9:17 PM – 12:07 AM2.824°S → SW
September8:25 PM – 10:05 PM1.720°SSW → SW
October7:38 PM – 7:58 PM0.314°SW → SW
NovemberBelow 10° in darkness—1°—
DecemberBelow 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 ≈ 21.53 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 (%)

JanFebMarAprMayJunJulAugSepOctNovDec
JanFebMarAprMayJunJulAugSepOctNovDec
High °F7072818391108107103102968372
Low °F-1-9-2223447525136258-8
Precip. (in)3.64.84.45.65.54.94.93.83.94.54.24.8

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

  • Many show caves restrict tripods on tours; ask in advance or bring a small beanbag.
  • Use manual focus with focus peaking in low light.
  • Never touch formations — skin oils stop their growth.
  • Follow White-nose Syndrome decontamination rules where posted to protect bats.
  • Scout in daylight if you plan to shoot at night or before sunrise.

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.

FAQ

When is the best time to photograph Fisher Ridge Cave System?
September has the clearest skies on average; june is best for the milky way core. For light, plan around the first and last hour of sun. Cave interiors stay at a constant temperature year-round; summer tours fill up, so book ahead.
What time is golden hour at Fisher Ridge Cave System?
In October the evening golden hour starts around 5:36 PM and ends after sunset at about 6:11 PM; the morning golden hour lasts until about 7:30 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Fisher Ridge Cave System?
Sunrise azimuth ranges from about 59° in June to 119° in December; sunset ranges from 301° to 241°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Fisher Ridge Cave System?
Yes — the core is visible from March to September on moonless nights. The estimated sky quality is Bortle 3 (rural sky).
Do you need a permit to photograph at Fisher Ridge Cave System?
Personal photography from public land rarely needs a permit. Commercial shoots, models, large groups and drones may require permission from the land manager — check before you go.
How far is Fisher Ridge Cave System from Morgantown?
About 4.3 km (2.7 mi) in a straight line; driving distance is usually longer, especially in mountain terrain.

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.