Located in San Juan County, Colorado, Coal Bank Pass is a mountain pass at about 3,234 m (10,610 ft) above sea level. It sits roughly 26 km (16 mi) S of Telluride.
Coal Bank Pass, elevation 10,640 feet (3,240 meters), is a mountain pass in the San Juan Mountains of western Colorado in the United States. The pass is in the San Juan National Forest.From the Wikipedia article “Coal Bank Pass”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Coal Bank Pass the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 120° (ESE) in late December. Sunset moves from 301° (WNW) in June to 241° (WSW) in December, and the midday sun climbs to 76° in summer but only 29° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:15 AM | 90° E | 7:23 PM | 271° W | 52° | 12h 08m |
| June solstice (Jun 21) | 5:50 AM | 59° ENE | 8:37 PM | 301° WNW | 76° | 14h 46m |
| September equinox (Sep 22) | 7:00 AM | 89° E | 7:10 PM | 271° W | 53° | 12h 10m |
| December solstice (Dec 21) | 7:23 AM | 120° ESE | 4:57 PM | 241° WSW | 29° | 9h 33m |
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
Mountain passes sit above valleys, so they reward sunrise and sunset with layered ridges, valley fog and long shadows.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:57 AM | 7:26 AM | 8:05 AM | 4:37 PM | 5:16 PM | 5:45 PM | 9h 51m |
| February | 6:35 AM | 7:02 AM | 7:38 AM | 5:14 PM | 5:51 PM | 6:18 PM | 10h 49m |
| March | 6:57 AM | 7:23 AM | 7:58 AM | 6:44 PM | 7:19 PM | 7:45 PM | 11h 56m |
| April | 6:10 AM | 6:37 AM | 7:12 AM | 7:12 PM | 7:47 PM | 8:14 PM | 13h 10m |
| May | 5:33 AM | 6:02 AM | 6:40 AM | 7:37 PM | 8:14 PM | 8:44 PM | 14h 12m |
| June | 5:19 AM | 5:50 AM | 6:29 AM | 7:56 PM | 8:35 PM | 9:06 PM | 14h 45m |
| July | 5:32 AM | 6:02 AM | 6:40 AM | 7:55 PM | 8:33 PM | 9:04 PM | 14h 31m |
| August | 6:00 AM | 6:28 AM | 7:04 AM | 7:30 PM | 8:05 PM | 8:33 PM | 13h 38m |
| September | 6:28 AM | 6:54 AM | 7:28 AM | 6:46 PM | 7:21 PM | 7:47 PM | 12h 27m |
| October | 6:54 AM | 7:20 AM | 7:55 AM | 6:00 PM | 6:35 PM | 7:01 PM | 11h 15m |
| November | 6:24 AM | 6:52 AM | 7:31 AM | 4:23 PM | 5:01 PM | 5:29 PM | 10h 09m |
| December | 6:51 AM | 7:20 AM | 8:01 AM | 4:13 PM | 4:54 PM | 5:24 PM | 9h 34m |
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 Coal Bank Pass, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.3 hours on a moonless night), and the core peaks around 23° 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 | — | -1° | — |
| February | 5:09 AM – 5:29 AM | 0.3 | 13° | SE → SE |
| March | 4:16 AM – 5:46 AM | 1.5 | 20° | SE → SSE |
| April | 2:20 AM – 5:00 AM | 2.7 | 23° | SE → S |
| May | 12:19 AM – 4:09 AM | 3.8 | 23° | SE → S |
| June | 10:30 PM – 3:50 AM | 5.3 | 23° | SE → SSW |
| July | 10:23 PM – 2:23 AM | 4.0 | 23° | SSE → SW |
| August | 9:43 PM – 12:23 AM | 2.7 | 23° | S → SW |
| September | 8:49 PM – 10:19 PM | 1.5 | 20° | SSW → SW |
| October | 8:02 PM – 8:22 PM | 0.3 | 13° | SW → SW |
| November | Below 10° in darkness | — | 1° | — |
| 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 ≈ 21.92 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show June as the clearest month (about 36% average cloud cover) and July as the cloudiest (55%). 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 | 52 | 61 | 69 | 81 | 85 | 87 | 83 | 82 | 71 | 62 | 50 |
| Low °F | -31 | -20 | -13 | -3 | 11 | 23 | 33 | 32 | 13 | 2 | -20 | -28 |
| Precip. (in) | 1.9 | 2.0 | 1.4 | 1.7 | 1.4 | 0.7 | 2.2 | 2.2 | 2.4 | 1.8 | 1.8 | 2.2 |
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 pass
- Look for the road itself as a leading line — switchbacks from above make strong compositions.
- Weather changes fast at elevation; carry layers even in summer.
- Summit pull-outs often face one direction; use the sun azimuth table to see whether sunrise or sunset suits the view.
- Wildflowers bloom late at pass elevations — often July to early August in the Rockies and Sierra.
- Tell someone where you're going in remote areas and carry the ten essentials.
Season: Summer and early autumn are the main season; winter visits depend on plowing and avalanche conditions.
Suggested gear: Telephoto lens, Tripod, Warm layers, Road-condition app. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Coal Bank Pass, closest first.
Mountain Peak
Wilderness Area
Mountain Pass
Ghost Town
Mountain Peak
Mountain Peak
Mountain Peak
Mountain Peak
Scenic ViewpointCampgrounds nearby (Recreation.gov)
- South Mineral11.7 km (7.3 mi) · reservable
- Matterhorn Cabin18.4 km (11.4 mi) · reservable
- Matterhorn18.5 km (11.5 mi) · reservable
- Haviland Lake Campground18.6 km (11.6 mi) · reservable
- Cayton Campground19.3 km (12.0 mi) · reservable
FAQ
When is the best time to photograph Coal Bank Pass?
What time is golden hour at Coal Bank Pass?
Where does the sun rise and set at Coal Bank Pass?
Can you see the Milky Way from Coal Bank Pass?
Do you need a permit to photograph at Coal Bank Pass?
How far is Coal Bank Pass from Telluride?
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.