Located in Franklin County, Tennessee, Sewanee Natural Bridge is a natural arch. The nearest town is Sewanee, about 5.5 km (3.4 mi) away (Sewanee Natural Bridge lies S of town).
Sewanee Natural Bridge in Franklin County, Tennessee, is a 25 feet (7.6 m) high natural sandstone arch with a span of 50 feet (15 m). It is essentially a giant sinkhole partially eroded to form a large stone bridge. A wet weather spring located behind the bridge in a rock cave probably contributed to the erosion forming the arch. It is called the Sewanee Natural Bridge as it was once owned by the University of the South in Sewanee, Tennessee. It is a 3-acre (12,000 m2) designated state natural area. The natural area is accessed via Highway Alt. 41. In Sewanee turn south onto Highway 56 and proceed 2.5 miles (4.0 km) to Natural Bridge Road. Turn left onto Natural Bridge Road and proceed 1⁄2 mile (800 m) to the parking area.From the Wikipedia article “Sewanee Natural Bridge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Sewanee Natural Bridge 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 242° (WSW) in December, and the midday sun climbs to 78° in summer but only 31° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:48 AM | 90° E | 6:56 PM | 271° W | 55° | 12h 07m |
| June solstice (Jun 21) | 5:30 AM | 60° ENE | 8:02 PM | 300° WNW | 78° | 14h 32m |
| September equinox (Sep 22) | 6:32 AM | 89° E | 6:42 PM | 271° W | 55° | 12h 10m |
| December solstice (Dec 21) | 6:49 AM | 119° ESE | 4:36 PM | 242° WSW | 31° | 9h 47m |
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
Arches glow when reflected light bounces off nearby rock — the underside of an arch often turns bright orange just after sunrise or before sunset.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:25 AM | 6:52 AM | 7:30 AM | 4:17 PM | 4:55 PM | 5:23 PM | 10h 03m |
| February | 6:05 AM | 6:31 AM | 7:06 AM | 4:52 PM | 5:27 PM | 5:53 PM | 10h 56m |
| March | 6:30 AM | 6:55 AM | 7:29 AM | 6:18 PM | 6:52 PM | 7:17 PM | 11h 56m |
| April | 5:46 AM | 6:12 AM | 6:46 AM | 6:42 PM | 7:16 PM | 7:43 PM | 13h 04m |
| May | 5:13 AM | 5:41 AM | 6:17 AM | 7:05 PM | 7:41 PM | 8:09 PM | 14h 00m |
| June | 5:00 AM | 5:30 AM | 6:07 AM | 7:23 PM | 8:00 PM | 8:30 PM | 14h 31m |
| July | 5:12 AM | 5:41 AM | 6:18 AM | 7:22 PM | 7:59 PM | 8:28 PM | 14h 18m |
| August | 5:37 AM | 6:04 AM | 6:39 AM | 6:59 PM | 7:34 PM | 8:01 PM | 13h 30m |
| September | 6:02 AM | 6:27 AM | 7:01 AM | 6:19 PM | 6:52 PM | 7:18 PM | 12h 25m |
| October | 6:25 AM | 6:50 AM | 7:24 AM | 5:36 PM | 6:10 PM | 6:35 PM | 11h 20m |
| November | 5:52 AM | 6:19 AM | 6:56 AM | 4:02 PM | 4:39 PM | 5:06 PM | 10h 20m |
| December | 6:17 AM | 6:46 AM | 7:25 AM | 3:55 PM | 4:34 PM | 5:02 PM | 9h 48m |
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 Sewanee Natural Bridge, 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 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 | 4:32 AM – 5:02 AM | 0.5 | 15° | SE → SE |
| March | 3:36 AM – 5:26 AM | 1.8 | 22° | SE → SSE |
| April | 1:36 AM – 4:36 AM | 3.0 | 26° | SE → S |
| May | 11:41 PM – 3:51 AM | 4.2 | 26° | SE → SSW |
| June | 9:48 PM – 3:38 AM | 5.8 | 26° | SE → SW |
| July | 9:44 PM – 2:14 AM | 4.5 | 26° | SSE → SW |
| August | 9:07 PM – 12:07 AM | 3.0 | 26° | S → SW |
| September | 8:18 PM – 10:08 PM | 1.8 | 23° | SSW → SW |
| October | 7:35 PM – 8:15 PM | 0.7 | 15° | 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: 3 Bortle 3 — Rural sky. Some light domes sit on the horizon, but the Milky Way still looks complex overhead. Modeled zenith brightness ≈ 21.45 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show October as the clearest month (about 47% average cloud cover) and February as the cloudiest (68%). 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 | 69 | 73 | 81 | 83 | 92 | 107 | 104 | 104 | 99 | 98 | 84 | 72 |
| Low °F | 2 | -5 | 13 | 22 | 33 | 47 | 53 | 51 | 39 | 26 | 12 | 8 |
| Precip. (in) | 4.3 | 5.6 | 4.5 | 5.0 | 4.7 | 4.3 | 5.1 | 3.7 | 3.9 | 3.6 | 4.4 | 5.4 |
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 natural arch
- At night, arches make classic Milky Way foregrounds; low-level lighting or blue hour exposures keep the rock detailed.
- Use a wide lens and get close to emphasize the span against the sky.
- Never climb on arches; many are fragile and climbing is prohibited on park lands.
- Midday sun creates hard shadows, but can light the underside through reflection in narrow canyons.
- Tell someone where you're going in remote areas and carry the ten essentials.
Season: Spring and autumn offer mild temperatures in desert arch country; summer heat is extreme at midday.
Suggested gear: Ultra-wide lens, Tripod, Headlamp, Plenty of water. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Sewanee Natural Bridge, closest first.
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When is the best time to photograph Sewanee Natural Bridge?
What time is golden hour at Sewanee Natural Bridge?
Where does the sun rise and set at Sewanee Natural Bridge?
Can you see the Milky Way from Sewanee Natural Bridge?
Do you need a permit to photograph at Sewanee Natural Bridge?
How far is Sewanee Natural Bridge from Sewanee?
Sources
Location data: Wikidata, OpenStreetMap contributors, 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.