Located in Chugach Census Area, Alaska, Mount Gannett is a mountain peak at about 2,919 m (9,577 ft) above sea level. The nearest town is Butte, about 56 km (35 mi) away (Mount Gannett lies SE of town).
Mount Gannett is a 9,629-foot (2,935 m) peak in the Chugach Mountains of eastern Alaska, United States, located 50 miles (80 km) east of the city of Anchorage. It was named by Lawrence Martin of the U.S. Geological Survey in 1911 for Henry Gannett. One arm of the Knik Glacier flows from the ice fields of Mount Gannett's north and east slopes, and the Colony Glacier rises on the west and southwest slopes, flowing into Inner Lake George. In between, the Gannett Glacier flows down a narrow valley northwest of the summit to join the Knik Glacier. The mountain has an estimated topographic prominence of 4,300 feet (1,300 m).From the Wikipedia article “Mount Gannett”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Mount Gannett the sunrise point swings a long way through the year: about 32° (NNE) at the June solstice and 143° (SE) in late December. Sunset moves from 329° (NNW) in June to 217° (SW) in December, and the midday sun climbs to 52° in summer but only 5° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:54 AM | 89° E | 8:07 PM | 272° W | 29° | 12h 13m |
| June solstice (Jun 21) | 4:14 AM | 32° NNE | 11:37 PM | 329° NNW | 52° | 19h 23m |
| September equinox (Sep 22) | 7:38 AM | 88° E | 7:55 PM | 272° W | 29° | 12h 17m |
| December solstice (Dec 21) | 10:09 AM | 143° SE | 3:35 PM | 217° SW | 5° | 5h 26m |
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 | 8:55 AM | 9:51 AM | 11:40 AM | 2:26 PM | 4:15 PM | 5:11 PM | 6h 24m |
| February | 7:50 AM | 8:36 AM | 9:44 AM | 4:32 PM | 5:40 PM | 6:25 PM | 9h 03m |
| March | 7:27 AM | 8:10 AM | 9:08 AM | 6:57 PM | 7:55 PM | 8:38 PM | 11h 44m |
| April | 5:43 AM | 6:32 AM | 7:31 AM | 8:15 PM | 9:15 PM | 10:03 PM | 14h 43m |
| May | 3:55 AM | 5:06 AM | 6:17 AM | 9:23 PM | 10:34 PM | 11:45 PM | 17h 28m |
| June | — | 4:14 AM | 5:41 AM | 10:07 PM | 11:34 PM | — | 19h 19m |
| July | 3:12 AM | 4:45 AM | 6:04 AM | 9:55 PM | 11:14 PM | 12:47 AM | 18h 28m |
| August | 5:08 AM | 6:02 AM | 7:05 AM | 8:51 PM | 9:54 PM | 10:49 PM | 15h 52m |
| September | 6:36 AM | 7:20 AM | 8:17 AM | 7:20 PM | 8:17 PM | 9:01 PM | 12h 57m |
| October | 7:52 AM | 8:36 AM | 9:38 AM | 5:40 PM | 6:42 PM | 7:26 PM | 10h 06m |
| November | 8:08 AM | 9:00 AM | 10:27 AM | 2:50 PM | 4:17 PM | 5:08 PM | 7h 17m |
| December | 9:02 AM | 10:04 AM | — | — | 3:34 PM | 4:36 PM | 5h 31m |
Local time (America/Anchorage), 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
The Milky Way's bright core (in Sagittarius) barely clears the southern horizon at this latitude, so focus on winter Milky Way, aurora or star trails instead.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -12° | — |
| February | Below 10° in darkness | — | -6° | — |
| March | Below 10° in darkness | — | -5° | — |
| April | Below 10° in darkness | — | -9° | — |
| May | No darkness | — | — | — |
| June | No darkness | — | — | — |
| July | No darkness | — | — | — |
| August | Below 10° in darkness | — | -4° | — |
| September | Below 10° in darkness | — | -7° | — |
| October | Below 10° in darkness | — | -8° | — |
| November | Below 10° in darkness | — | -12° | — |
| December | Below 10° in darkness | — | -22° | — |
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: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.89 mag/arcsec². Aurora needs roughly Kp 0.0+ to show low on the northern horizon here.
Weather & best season
Long-term NASA satellite data for this area show March as the clearest month (about 63% average cloud cover) and July as the cloudiest (83%). 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 | 33 | 35 | 41 | 46 | 60 | 72 | 74 | 71 | 58 | 47 | 35 | 32 |
| Low °F | -34 | -27 | -30 | -11 | 7 | 28 | 33 | 28 | 12 | -12 | -28 | -23 |
| Precip. (in) | 3.0 | 3.0 | 2.5 | 2.6 | 3.0 | 4.8 | 5.3 | 6.1 | 6.2 | 4.7 | 3.8 | 3.7 |
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
- 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.
- Check road and trail conditions with the managing agency before you go.
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.
Nearby photo spots
Other locations within 25 km of Mount Gannett, closest first.
Campgrounds nearby (Recreation.gov)
FAQ
When is the best time to photograph Mount Gannett?
What time is golden hour at Mount Gannett?
Where does the sun rise and set at Mount Gannett?
Can you see the Milky Way from Mount Gannett?
Do you need a permit to photograph at Mount Gannett?
How far is Mount Gannett from Butte?
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.