Sloan Peak is a mountain peak in Snohomish County, Washington at about 2,388 m (7,835 ft) above sea level. It is part of Henry M. Jackson Wilderness. The nearest town is Darrington, about 31 km (19 mi) away (Sloan Peak lies SE of town).
Sloan Peak is a 7,835-foot (2,388-metre) mountain in the North Cascades of Washington state. It rises about 40 miles (64 km) east of Everett, Washington and 12 miles southwest of Glacier Peak, one of the Cascade stratovolcanoes. It is located between the north and south forks of Sauk River, in the Mount Baker–Snoqualmie National Forest. The summit is situated about 4 miles (6.4 km) east of the Mountain Loop Highway. Sloan Peak has been called the "Matterhorn of the Cascades" for its sharp, high peak, which is accentuated by its impressive local relief and its isolated position west of the Cascade crest. It is easily visible from many locations in the North Cascades. On both the east and southwest sides, Sloan's summit rises more than one vertical mile (1.6 km) above the valley floor in less than two horizontal miles (3.2 km).From the Wikipedia article “Sloan Peak”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Sloan Peak the sunrise point swings a long way through the year: about 53° (NE) at the June solstice and 126° (SE) in late December. Sunset moves from 308° (NW) in June to 235° (SW) in December, and the midday sun climbs to 65° in summer but only 19° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:09 AM | 89° E | 7:18 PM | 271° W | 42° | 12h 09m |
| June solstice (Jun 21) | 5:06 AM | 53° NE | 9:09 PM | 308° NW | 65° | 16h 03m |
| September equinox (Sep 22) | 6:53 AM | 89° E | 7:05 PM | 271° W | 42° | 12h 12m |
| December solstice (Dec 21) | 7:53 AM | 126° SE | 4:15 PM | 235° SW | 19° | 8h 22m |
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
Summits catch first and last light — alpenglow can turn rock pink or orange minutes before sunrise and after sunset while valleys stay in shadow.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:16 AM | 7:51 AM | 8:42 AM | 3:49 PM | 4:40 PM | 5:15 PM | 8h 49m |
| February | 6:41 AM | 7:13 AM | 7:57 AM | 4:44 PM | 5:28 PM | 6:00 PM | 10h 15m |
| March | 6:48 AM | 7:19 AM | 8:00 AM | 6:30 PM | 7:11 PM | 7:42 PM | 11h 52m |
| April | 5:44 AM | 6:16 AM | 6:58 AM | 7:14 PM | 7:56 PM | 8:28 PM | 13h 39m |
| May | 4:50 AM | 5:27 AM | 6:13 AM | 7:52 PM | 8:38 PM | 9:15 PM | 15h 11m |
| June | 4:25 AM | 5:06 AM | 5:55 AM | 8:19 PM | 9:08 PM | 9:49 PM | 16h 02m |
| July | 4:43 AM | 5:22 AM | 6:09 AM | 8:15 PM | 9:02 PM | 9:41 PM | 15h 40m |
| August | 5:27 AM | 6:01 AM | 6:44 AM | 7:37 PM | 8:20 PM | 8:55 PM | 14h 19m |
| September | 6:12 AM | 6:43 AM | 7:24 AM | 6:39 PM | 7:20 PM | 7:51 PM | 12h 36m |
| October | 6:54 AM | 7:25 AM | 8:08 AM | 5:36 PM | 6:18 PM | 6:50 PM | 10h 53m |
| November | 6:39 AM | 7:13 AM | 8:01 AM | 3:41 PM | 4:29 PM | 5:03 PM | 9h 16m |
| December | 7:13 AM | 7:50 AM | 8:43 AM | 3:20 PM | 4:13 PM | 4:50 PM | 8h 24m |
Local time (America/Los Angeles), 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 Sloan Peak, the Milky Way core is visible in a dark sky from April through July. June gives the longest window (about 1.3 hours on a moonless night), and the core peaks around 13° 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 | — | -6° | — |
| February | Below 10° in darkness | — | 5° | — |
| March | Below 10° in darkness | — | 9° | — |
| April | 3:41 AM – 4:11 AM | 0.5 | 12° | SSE → SSE |
| May | 1:43 AM – 2:53 AM | 1.2 | 13° | SSE → S |
| June | 12:22 AM – 1:42 AM | 1.3 | 13° | SSE → S |
| July | 11:48 PM – 12:48 AM | 1.0 | 13° | S → SSW |
| August | 10:26 PM – 10:46 PM | 0.3 | 11° | SSW → SSW |
| September | Below 10° in darkness | — | 9° | — |
| October | Below 10° in darkness | — | 4° | — |
| November | Below 10° in darkness | — | -5° | — |
| 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: 3 Bortle 3 — Rural sky. Some light domes sit on the horizon, but the Milky Way still looks complex overhead. Modeled zenith brightness ≈ 21.41 mag/arcsec². Aurora needs roughly Kp 4.5+ to show low on the northern horizon here.
Weather & best season
Long-term NASA satellite data for this area show July as the clearest month (about 42% average cloud cover) and November as the cloudiest (76%). August is the warmest month and December 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 | 47 | 50 | 56 | 68 | 77 | 87 | 90 | 90 | 86 | 76 | 55 | 41 |
| Low °F | -20 | -17 | -12 | 1 | 16 | 28 | 34 | 35 | 24 | -2 | -17 | -20 |
| Precip. (in) | 9.5 | 6.5 | 7.5 | 4.8 | 3.6 | 3.0 | 1.3 | 1.7 | 3.4 | 7.2 | 10.7 | 9.1 |
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 mountain peak
- Snow on the summit holds detail best when you expose for the highlights and lift shadows later.
- Alpenglow lasts only a few minutes; set up and focus beforehand.
- Clouds around the summit add drama — a clear blue sky is often the least interesting condition.
- Photograph the peak from a lake, meadow or ridge at sunrise when the face that looks east lights up first.
- Long lenses compress ridgelines; shoot the peak from several miles away to make it look massive.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Early summer keeps snow on the peaks with green valleys below; autumn adds aspen or larch color in many ranges.
Suggested gear: Telephoto lens, Lightweight tripod, Warm layers, Microspikes in shoulder seasons. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
Drones: Drones may not take off from or land in federally designated wilderness, where mechanized equipment is prohibited under the Wilderness Act.
Nearby photo spots
Other locations within 25 km of Sloan Peak, closest first.
Waterfall
Ghost TownWaterfall
Mountain Peak
Wilderness Area
Mountain Pass
Glacier
Mountain Peak
LakeCampgrounds nearby (Recreation.gov)
- Bedal Campground7.1 km (4.4 mi) · reservable
- Troublesome Creek Campground16.6 km (10.3 mi) · reservable
- Coal Creek Group Camp16.7 km (10.4 mi) · reservable
- Red Bridge Campground 23 km (14 mi) · reservable
- Evergreen Mountain Lookout23 km (15 mi) · reservable
FAQ
When is the best time to photograph Sloan Peak?
What time is golden hour at Sloan Peak?
Where does the sun rise and set at Sloan Peak?
Can you see the Milky Way from Sloan Peak?
Do you need a permit to photograph at Sloan Peak?
How far is Sloan Peak from Darrington?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, 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.