Berthoud Pass — a mountain pass in Clear Creek County, Colorado at about 3,452 m (11,325 ft) above sea level — is a classic subject for landscape photographers. The nearest town is Georgetown, about 12.3 km (7.6 mi) away (Berthoud Pass lies NNW of town).
Berthoud Pass ( BURTH-əd; elevation 11,307 ft (3,446 m)) is a high mountain pass in central Colorado, in the Front Range of the Rocky Mountains of the western United States. The pass is located west of Denver, and provides a high route between upper Clear Creek Canyon to the upper valley of the Fraser River in Middle Park to the north. It traverses the continental divide at the Front Range, on the border between Clear Creek County and Grand County. The pass is named for Edward L. Berthoud, the chief surveyor of the Colorado Central Railroad during the 1870s. Accompanied by Jim Bridger, Berthoud discovered the pass in July 1861 while surveying a possible route for the railroad. Berthoud concluded that the pass was suitable as a wagon road, but not as a railroad, and was then hired by the Central Overland California and Pikes Peak Express Company to survey a route over the pass to Salt Lake.From the Wikipedia article “Berthoud Pass”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Berthoud Pass the sunrise point swings a long way through the year: about 58° (ENE) at the June solstice and 121° (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 | 8:35 PM | 302° WNW | 74° | 15h 00m |
| September equinox (Sep 22) | 6:51 AM | 89° E | 7:02 PM | 271° W | 50° | 12h 10m |
| December solstice (Dec 21) | 7:22 AM | 121° ESE | 4:42 PM | 240° WSW | 27° | 9h 21m |
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 | 6:54 AM | 7:23 AM | 8:05 AM | 4:22 PM | 5:03 PM | 5:33 PM | 9h 40m |
| February | 6:29 AM | 6:57 AM | 7:34 AM | 5:02 PM | 5:40 PM | 6:07 PM | 10h 43m |
| March | 6:49 AM | 7:15 AM | 7:51 AM | 6:35 PM | 7:10 PM | 7:37 PM | 11h 55m |
| April | 5:58 AM | 6:26 AM | 7:02 AM | 7:05 PM | 7:41 PM | 8:09 PM | 13h 15m |
| May | 5:19 AM | 5:49 AM | 6:28 AM | 7:33 PM | 8:11 PM | 8:42 PM | 14h 22m |
| June | 5:03 AM | 5:35 AM | 6:16 AM | 7:53 PM | 8:34 PM | 9:06 PM | 14h 59m |
| July | 5:16 AM | 5:48 AM | 6:28 AM | 7:52 PM | 8:31 PM | 9:03 PM | 14h 43m |
| August | 5:47 AM | 6:16 AM | 6:53 AM | 7:24 PM | 8:01 PM | 8:30 PM | 13h 45m |
| September | 6:18 AM | 6:45 AM | 7:21 AM | 6:38 PM | 7:14 PM | 7:41 PM | 12h 29m |
| October | 6:47 AM | 7:14 AM | 7:51 AM | 5:49 PM | 6:25 PM | 6:52 PM | 11h 11m |
| November | 6:20 AM | 6:49 AM | 7:29 AM | 4:09 PM | 4:49 PM | 5:17 PM | 10h 00m |
| December | 6:48 AM | 7:18 AM | 8:01 AM | 3:57 PM | 4:40 PM | 5:11 PM | 9h 22m |
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 Berthoud Pass, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.8 hours on a moonless night), and the core peaks around 21° 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 | — | -3° | — |
| February | 5:10 AM – 5:20 AM | 0.2 | 11° | SE → SE |
| March | 4:20 AM – 5:40 AM | 1.3 | 18° | SE → SSE |
| April | 2:18 AM – 4:48 AM | 2.5 | 21° | SE → S |
| May | 12:21 AM – 3:51 AM | 3.5 | 21° | SE → S |
| June | 10:35 PM – 3:25 AM | 4.8 | 21° | SE → SSW |
| July | 10:27 PM – 2:07 AM | 3.7 | 21° | S → SW |
| August | 9:42 PM – 12:02 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: 3 Bortle 3 — Rural sky. Some light domes sit on the horizon, but the Milky Way still looks complex overhead. Modeled zenith brightness ≈ 21.26 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 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 Berthoud Pass, closest first.
Mountain Pass
Mountain Peak
Mountain Peak
Mountain Peak
Wilderness AreaMountain Pass
Scenic ViewpointMountain Pass
Ghost TownCampgrounds nearby (Recreation.gov)
- Robbers Roost Campground4.2 km (2.6 mi)
- Midland Group Campground7.7 km (4.8 mi) · reservable
- Midland Group Campground7.7 km (4.8 mi)
- Idlewild Campground12.0 km (7.4 mi) · reservable
- St. Louis Creek16.1 km (10.0 mi) · reservable
FAQ
When is the best time to photograph Berthoud Pass?
What time is golden hour at Berthoud Pass?
Where does the sun rise and set at Berthoud Pass?
Can you see the Milky Way from Berthoud Pass?
Do you need a permit to photograph at Berthoud Pass?
How far is Berthoud Pass from Georgetown?
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.