Located in Penobscot County, Maine, Bowlin Falls is a waterfall at about 150 m (492 ft) above sea level. It lies in or next to Katahdin Woods and Waters National Monument, so park hours, fees and rules apply. It sits roughly 22 km (14 mi) WNW of Patten.
From the National Park Service
While paddling down the East Branch of the Penobscot River, Bowlin Falls is the last waterfall and portage within national monument boundaries, There are no trails to Bowlin Falls and it is only accessible by water.
Text: National Park Service (public domain) — nps.gov.
Sunrise & sunset directions
At Bowlin Falls the sunrise point swings a long way through the year: about 54° (NE) at the June solstice and 124° (SE) in late December. Sunset moves from 306° (NW) in June to 236° (WSW) in December, and the midday sun climbs to 67° in summer but only 21° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:39 AM | 90° E | 6:47 PM | 271° W | 44° | 12h 08m |
| June solstice (Jun 21) | 4:45 AM | 54° NE | 8:30 PM | 306° NW | 67° | 15h 46m |
| September equinox (Sep 22) | 6:22 AM | 89° E | 6:35 PM | 271° W | 44° | 12h 12m |
| December solstice (Dec 21) | 7:15 AM | 124° SE | 3:53 PM | 236° WSW | 21° | 8h 38m |
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
Waterfalls photograph best in soft, even light: overcast days, deep shade, or the hour after sunrise before direct sun hits the water. Bright sun on white water blows highlights and adds harsh contrast.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:40 AM | 7:14 AM | 8:02 AM | 3:28 PM | 4:16 PM | 4:50 PM | 9h 02m |
| February | 6:08 AM | 6:39 AM | 7:21 AM | 4:19 PM | 5:01 PM | 5:32 PM | 10h 22m |
| March | 6:19 AM | 6:49 AM | 7:28 AM | 6:01 PM | 6:41 PM | 7:11 PM | 11h 52m |
| April | 5:18 AM | 5:49 AM | 6:30 AM | 6:41 PM | 7:22 PM | 7:53 PM | 13h 32m |
| May | 4:29 AM | 5:04 AM | 5:47 AM | 7:17 PM | 8:01 PM | 8:36 PM | 14h 57m |
| June | 4:06 AM | 4:44 AM | 5:31 AM | 7:42 PM | 8:28 PM | 9:07 PM | 15h 44m |
| July | 4:22 AM | 4:59 AM | 5:44 AM | 7:39 PM | 8:24 PM | 9:01 PM | 15h 24m |
| August | 5:02 AM | 5:35 AM | 6:16 AM | 7:04 PM | 7:46 PM | 8:18 PM | 14h 11m |
| September | 5:44 AM | 6:14 AM | 6:53 AM | 6:09 PM | 6:48 PM | 7:19 PM | 12h 35m |
| October | 6:22 AM | 6:52 AM | 7:33 AM | 5:10 PM | 5:50 PM | 6:21 PM | 10h 58m |
| November | 6:04 AM | 6:36 AM | 7:22 AM | 3:19 PM | 4:05 PM | 4:37 PM | 9h 28m |
| December | 6:36 AM | 7:11 AM | 8:01 AM | 3:01 PM | 3:51 PM | 4:25 PM | 8h 40m |
Local time (America/New York), 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 Bowlin Falls, the Milky Way core is visible in a dark sky from April through August. June gives the longest window (about 2.8 hours on a moonless night), and the core peaks around 15° above the southern horizon. Our light-pollution model puts the sky at about Bortle 1 (excellent dark-sky site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -5° | — |
| February | Below 10° in darkness | — | 6° | — |
| March | 4:51 AM – 5:01 AM | 0.2 | 11° | SSE → SSE |
| April | 2:42 AM – 3:52 AM | 1.2 | 14° | SSE → SSE |
| May | 12:44 AM – 2:44 AM | 2.0 | 15° | SSE → S |
| June | 11:10 PM – 2:00 AM | 2.8 | 15° | SSE → SSW |
| July | 10:51 PM – 12:41 AM | 1.8 | 15° | S → SSW |
| August | 9:44 PM – 10:44 PM | 1.0 | 14° | SSW → SSW |
| September | 8:31 PM – 8:41 PM | 0.2 | 11° | SSW → SSW |
| October | Below 10° in darkness | — | 6° | — |
| November | Below 10° in darkness | — | -3° | — |
| December | Below 10° in darkness | — | -20° | — |
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: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.93 mag/arcsec². Aurora needs roughly Kp 3.5+ 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 56% average cloud cover) and November as the cloudiest (72%). 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 | 48 | 46 | 69 | 74 | 85 | 89 | 88 | 87 | 86 | 76 | 66 | 56 |
| Low °F | -36 | -30 | -21 | 4 | 25 | 31 | 44 | 39 | 27 | 18 | -1 | -22 |
| Precip. (in) | 2.5 | 2.6 | 3.0 | 3.6 | 3.7 | 4.8 | 4.4 | 3.9 | 3.6 | 4.7 | 3.9 | 3.9 |
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 waterfall
- Spring snowmelt and the days after heavy rain give the strongest flow; late summer flow can drop to a trickle.
- Look for a foreground: a mossy boulder, a fallen log or the creek's leading lines make a stronger frame than the falls alone.
- Keep a microfiber cloth handy — spray drifts onto the lens, especially at the plunge pool.
- Bracket shutter speeds: 1/8 s, 1/2 s and 2 s give very different water textures and you can choose later.
- Scout in daylight if you plan to shoot at night or before sunrise.
Season: Peak flow is usually in late spring; autumn adds color around the falls, and winter can bring ice formations at colder locations.
Suggested gear: Tripod, Circular polarizer, 3–6 stop ND filter, Lens cloth, Waterproof footwear. 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 Bowlin Falls, closest first.
WaterfallWaterfallWaterfall
Mountain PeakWaterfall
Dark Sky PlaceWaterfallWaterfallWaterfallCampgrounds nearby (Recreation.gov)
FAQ
When is the best time to photograph Bowlin Falls?
What time is golden hour at Bowlin Falls?
Where does the sun rise and set at Bowlin Falls?
Can you see the Milky Way from Bowlin Falls?
Do you need a permit to photograph at Bowlin Falls?
How far is Bowlin Falls from Patten?
Sources
Location data: National Park Service, USGS GNIS / GeoNames. 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.