Located in Fremont County, Wyoming, Mount Sacagawea is a mountain peak at about 4,119 m (13,514 ft) above sea level. The nearest town is Pinedale, about 36 km (22 mi) away (Mount Sacagawea lies NNE of town).
Mount Sacagawea (13,575 ft (4,138 m)) is the eighth-highest peak in the U.S. state of Wyoming and the seventh-highest in the Wind River Range. It was named after Sacagawea, the young Lemhi Shoshone woman who accompanied the Lewis and Clark Expedition as an interpreter and guide. The Upper Fremont Glacier is located southeast and the Sacagawea Glacier is northeast of the mountain. Straddling the Continental Divide, Mount Sacagawea is one mile (1.6 km) northwest of Fremont Peak.From the Wikipedia article “Mount Sacagawea”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Mount Sacagawea the sunrise point swings a long way through the year: about 56° (NE) at the June solstice and 122° (ESE) in late December. Sunset moves from 304° (NW) in June to 238° (WSW) in December, and the midday sun climbs to 70° in summer but only 23° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:23 AM | 90° E | 7:31 PM | 271° W | 47° | 12h 08m |
| June solstice (Jun 21) | 5:40 AM | 56° NE | 9:02 PM | 304° NW | 70° | 15h 23m |
| September equinox (Sep 22) | 7:06 AM | 89° E | 7:18 PM | 271° W | 47° | 12h 11m |
| December solstice (Dec 21) | 7:48 AM | 122° ESE | 4:47 PM | 238° WSW | 23° | 8h 59m |
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 | 7:17 AM | 7:48 AM | 8:32 AM | 4:25 PM | 5:09 PM | 5:41 PM | 9h 21m |
| February | 6:48 AM | 7:17 AM | 7:57 AM | 5:10 PM | 5:50 PM | 6:19 PM | 10h 33m |
| March | 7:03 AM | 7:31 AM | 8:09 AM | 6:47 PM | 7:25 PM | 7:53 PM | 11h 54m |
| April | 6:07 AM | 6:37 AM | 7:15 AM | 7:23 PM | 8:01 PM | 8:31 PM | 13h 24m |
| May | 5:23 AM | 5:56 AM | 6:37 AM | 7:55 PM | 8:36 PM | 9:08 PM | 14h 40m |
| June | 5:04 AM | 5:39 AM | 6:22 AM | 8:17 PM | 9:01 PM | 9:36 PM | 15h 21m |
| July | 5:19 AM | 5:53 AM | 6:35 AM | 8:15 PM | 8:57 PM | 9:31 PM | 15h 04m |
| August | 5:54 AM | 6:25 AM | 7:04 AM | 7:44 PM | 8:23 PM | 8:54 PM | 13h 58m |
| September | 6:30 AM | 6:59 AM | 7:36 AM | 6:53 PM | 7:30 PM | 7:59 PM | 12h 31m |
| October | 7:04 AM | 7:33 AM | 8:11 AM | 5:58 PM | 6:37 PM | 7:06 PM | 11h 04m |
| November | 6:41 AM | 7:12 AM | 7:55 AM | 4:13 PM | 4:56 PM | 5:27 PM | 9h 44m |
| December | 7:12 AM | 7:44 AM | 8:30 AM | 3:59 PM | 4:45 PM | 5:17 PM | 9h 01m |
Local time (America/Denver), 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 Mount Sacagawea, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 3.8 hours on a moonless night), and the core peaks around 18° 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 | — | -4° | — |
| February | Below 10° in darkness | — | 9° | — |
| March | 5:00 AM – 5:50 AM | 0.8 | 14° | SSE → SSE |
| April | 3:04 AM – 4:44 AM | 1.7 | 17° | SSE → S |
| May | 1:07 AM – 3:47 AM | 2.7 | 18° | SSE → S |
| June | 11:20 PM – 3:10 AM | 3.8 | 18° | SSE → SSW |
| July | 11:08 PM – 1:58 AM | 2.8 | 18° | S → SSW |
| August | 10:12 PM – 11:52 PM | 1.7 | 17° | S → SSW |
| September | 9:07 PM – 9:47 PM | 0.7 | 14° | SSW → SSW |
| October | Below 10° in darkness | — | 9° | — |
| November | Below 10° in darkness | — | -2° | — |
| December | Below 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: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.94 mag/arcsec². Aurora needs roughly Kp 6.0+ 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 45% average cloud cover) and May as the cloudiest (73%). July 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 | 41 | 40 | 57 | 69 | 78 | 85 | 91 | 88 | 83 | 72 | 60 | 43 |
| Low °F | -24 | -31 | -18 | -8 | 7 | 22 | 31 | 29 | 14 | -5 | -24 | -27 |
| Precip. (in) | 1.2 | 1.6 | 1.6 | 2.2 | 3.0 | 1.9 | 1.2 | 1.2 | 1.7 | 1.7 | 1.4 | 1.4 |
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 mountain peak
- Afternoon thunderstorms are common in summer at high elevations — plan summit hikes for early morning.
- 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.
- Scout in daylight if you plan to shoot at night or before sunrise.
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 Sacagawea, closest first.
Glacier
Glacier
Mountain PeakMountain Peak
Wilderness Area
Mountain Peak
GlacierWilderness Area
WaterfallCampgrounds nearby (Recreation.gov)
- Trails End Campground17.9 km (11.1 mi) · reservable
- Half Moon Lake Campground25 km (15 mi) · reservable
- Fremont Lake25 km (16 mi) · reservable
- Narrows Campground26 km (16 mi) · reservable
- Green River Lake Lodge27 km (17 mi) · reservable
FAQ
When is the best time to photograph Mount Sacagawea?
What time is golden hour at Mount Sacagawea?
Where does the sun rise and set at Mount Sacagawea?
Can you see the Milky Way from Mount Sacagawea?
Do you need a permit to photograph at Mount Sacagawea?
How far is Mount Sacagawea from Pinedale?
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.