Located in Clear Creek County, Colorado, Mount Blue Sky is a mountain peak. It is part of Arapaho National Forest. The nearest town is Georgetown, about 13.9 km (8.6 mi) away (Mount Blue Sky lies SSE of town).
Mount Blue Sky (previously Mount Evans) is the highest peak in the Mount Evans Wilderness in the Front Range of the Rocky Mountains of North America. The prominent 14,266.1-foot (4,348 m) fourteener is located 13.4 miles (21.6 km) southwest by south (bearing 214°) of Idaho Springs in Clear Creek County, Colorado, United States, on the drainage divide between Clear Creek in Arapaho National Forest and the North Fork South Platte River in Pike National Forest. The peak is one of the characteristic Front Range peaks, dominating the western skyline of the Great Plains along with Pikes Peak, Longs Peak, and nearby Mount Bierstadt. Mount Blue Sky can be seen from over 100 miles (160 km) to the east, and many miles in other directions. Mount Blue Sky dominates the Denver metropolitan area skyline, rising over 9,000 feet (2,700 m) above the area. Mount Blue Sky can be seen from points south...From the Wikipedia article “Mount Blue Sky”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Mount Blue Sky the sunrise point swings a long way through the year: about 58° (ENE) at the June solstice and 120° (ESE) in late December. Sunset moves from 302° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 74° in summer but only 27° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:07 AM | 90° E | 7:15 PM | 271° W | 50° | 12h 08m |
| June solstice (Jun 21) | 5:36 AM | 58° ENE | 8:34 PM | 302° WNW | 74° | 14h 58m |
| September equinox (Sep 22) | 6:51 AM | 89° E | 7:01 PM | 271° W | 51° | 12h 10m |
| December solstice (Dec 21) | 7:20 AM | 120° ESE | 4:42 PM | 240° WSW | 27° | 9h 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 | 6:53 AM | 7:22 AM | 8:03 AM | 4:22 PM | 5:03 PM | 5:33 PM | 9h 41m |
| February | 6:28 AM | 6:56 AM | 7:33 AM | 5:02 PM | 5:39 PM | 6:07 PM | 10h 44m |
| March | 6:48 AM | 7:15 AM | 7:51 AM | 6:34 PM | 7:10 PM | 7:37 PM | 11h 55m |
| April | 5:58 AM | 6:26 AM | 7:02 AM | 7:04 PM | 7:41 PM | 8:08 PM | 13h 15m |
| May | 5:19 AM | 5:49 AM | 6:28 AM | 7:32 PM | 8:10 PM | 8:41 PM | 14h 21m |
| June | 5:03 AM | 5:35 AM | 6:16 AM | 7:52 PM | 8:32 PM | 9:05 PM | 14h 57m |
| July | 5:17 AM | 5:48 AM | 6:28 AM | 7:51 PM | 8:30 PM | 9:02 PM | 14h 42m |
| August | 5:47 AM | 6:16 AM | 6:53 AM | 7:23 PM | 8:00 PM | 8:29 PM | 13h 44m |
| September | 6:17 AM | 6:45 AM | 7:20 AM | 6:37 PM | 7:13 PM | 7:40 PM | 12h 28m |
| October | 6:46 AM | 7:13 AM | 7:50 AM | 5:48 PM | 6:25 PM | 6:52 PM | 11h 12m |
| November | 6:19 AM | 6:48 AM | 7:27 AM | 4:09 PM | 4:49 PM | 5:17 PM | 10h 01m |
| December | 6:47 AM | 7:17 AM | 7:59 AM | 3:58 PM | 4:40 PM | 5:11 PM | 9h 23m |
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 Blue Sky, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.0 hours on a moonless night), and the core peaks around 22° above the southern horizon. Our light-pollution model puts the sky at about Bortle 4 (rural / suburban transition), good enough for detailed Milky Way images.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:10 AM – 5:20 AM | 0.2 | 12° | SE → SE |
| March | 4:20 AM – 5:40 AM | 1.3 | 18° | SE → SSE |
| April | 2:17 AM – 4:47 AM | 2.5 | 21° | SE → S |
| May | 12:20 AM – 3:50 AM | 3.5 | 22° | SE → S |
| June | 10:34 PM – 3:34 AM | 5.0 | 22° | SE → SSW |
| July | 10:26 PM – 2:06 AM | 3.7 | 22° | S → SW |
| August | 9:41 PM – 12:01 AM | 2.3 | 21° | S → SW |
| September | 8:45 PM – 10:05 PM | 1.3 | 18° | SSW → SW |
| October | 7:55 PM – 8:05 PM | 0.2 | 12° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| 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: 4 Bortle 4 — Rural / suburban transition. Light domes are visible in several directions; the Milky Way is clear but lacks detail near the horizon. Modeled zenith brightness ≈ 21.1 mag/arcsec². Aurora needs roughly Kp 7.5+ 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 44% average cloud cover) and April as the cloudiest (64%). 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 | 46 | 47 | 64 | 68 | 81 | 86 | 87 | 85 | 82 | 73 | 62 | 49 |
| Low °F | -21 | -30 | -20 | -8 | 4 | 23 | 34 | 31 | 16 | -6 | -14 | -21 |
| Precip. (in) | 1.2 | 1.6 | 1.8 | 2.4 | 2.3 | 1.4 | 2.4 | 2.0 | 1.6 | 1.4 | 1.2 | 1.3 |
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.
- 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 Blue Sky, closest first.
Wilderness Area
Lake
Mountain Peak
Mountain Pass
Lake
Mountain Peak
Mountain Pass
Mountain Peak
Mountain PeakCampgrounds nearby (Recreation.gov)
- Guanella Pass6.8 km (4.2 mi) · reservable
- Echo Lake8.6 km (5.4 mi) · reservable
- Geneva Park Campground9.9 km (6.2 mi) · reservable
- Burning Bear Campground10.0 km (6.2 mi) · reservable
- West Chicago Creek10.2 km (6.3 mi) · reservable
FAQ
When is the best time to photograph Mount Blue Sky?
What time is golden hour at Mount Blue Sky?
Where does the sun rise and set at Mount Blue Sky?
Can you see the Milky Way from Mount Blue Sky?
Do you need a permit to photograph at Mount Blue Sky?
How far is Mount Blue Sky from Georgetown?
Sources
Location data: Wikidata, 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.