Located in Hinsdale County, Colorado, Rio Grande Pyramid is a mountain peak at about 4,204 m (13,793 ft) above sea level. The nearest town is Ouray, about 45 km (28 mi) away (Rio Grande Pyramid lies SSE of town).
Rio Grande Pyramid, elevation 13,827 feet, is a summit in the San Juan Mountains of southwest Colorado. The peak is located in the Weminuche Wilderness of the San Juan National Forest near the headwaters of its namesake, the Rio Grande. It lies on an east-west trending section of the Continental Divide about 25 miles south of the Hinsdale County seat, Lake City.From the Wikipedia article “Rio Grande Pyramid”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Rio Grande Pyramid 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) | 7:14 AM | 90° E | 7:22 PM | 271° W | 52° | 12h 08m |
| June solstice (Jun 21) | 5:49 AM | 59° ENE | 8:35 PM | 301° WNW | 76° | 14h 46m |
| September equinox (Sep 22) | 6:58 AM | 89° E | 7:08 PM | 271° W | 53° | 12h 10m |
| December solstice (Dec 21) | 7:22 AM | 120° ESE | 4:55 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
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 | 6:56 AM | 7:24 AM | 8:04 AM | 4:35 PM | 5:15 PM | 5:44 PM | 9h 51m |
| February | 6:33 AM | 7:00 AM | 7:36 AM | 5:13 PM | 5:49 PM | 6:16 PM | 10h 49m |
| March | 6:55 AM | 7:22 AM | 7:56 AM | 6:42 PM | 7:17 PM | 7:43 PM | 11h 56m |
| April | 6:08 AM | 6:35 AM | 7:10 AM | 7:10 PM | 7:45 PM | 8:12 PM | 13h 10m |
| May | 5:31 AM | 6:01 AM | 6:38 AM | 7:35 PM | 8:13 PM | 8:42 PM | 14h 12m |
| June | 5:17 AM | 5:48 AM | 6:27 AM | 7:54 PM | 8:34 PM | 9:05 PM | 14h 45m |
| July | 5:30 AM | 6:00 AM | 6:39 AM | 7:53 PM | 8:32 PM | 9:02 PM | 14h 31m |
| August | 5:58 AM | 6:26 AM | 7:02 AM | 7:28 PM | 8:04 PM | 8:32 PM | 13h 38m |
| September | 6:26 AM | 6:52 AM | 7:27 AM | 6:45 PM | 7:19 PM | 7:45 PM | 12h 27m |
| October | 6:52 AM | 7:18 AM | 7:54 AM | 5:58 PM | 6:34 PM | 7:00 PM | 11h 15m |
| November | 6:23 AM | 6:50 AM | 7:29 AM | 4:21 PM | 5:00 PM | 5:28 PM | 10h 09m |
| December | 6:49 AM | 7:18 AM | 7:59 AM | 4:12 PM | 4:53 PM | 5:22 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 Rio Grande Pyramid, 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 | 5:08 AM – 5:28 AM | 0.3 | 13° | SE → SE |
| March | 4:15 AM – 5:45 AM | 1.5 | 20° | SE → SSE |
| April | 2:19 AM – 4:59 AM | 2.7 | 23° | SE → S |
| May | 12:18 AM – 4:08 AM | 3.8 | 23° | SE → S |
| June | 10:29 PM – 3:49 AM | 5.3 | 23° | SE → SSW |
| July | 10:22 PM – 2:22 AM | 4.0 | 23° | SSE → SW |
| August | 9:42 PM – 12:22 AM | 2.7 | 23° | S → SW |
| September | 8:48 PM – 10:18 PM | 1.5 | 20° | SSW → SW |
| October | 8:01 PM – 8:21 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 ≈ 21.93 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 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 Rio Grande Pyramid, closest first.
Wilderness Area
Lake
Mountain Peak
Mountain Peak
Mountain Pass
Mountain Peak
Mountain Peak
Mountain Peak
Mountain PeakCampgrounds nearby (Recreation.gov)
- Thirty Mile12.8 km (8.0 mi) · reservable
- River Hill15.2 km (9.4 mi) · reservable
- Cimarrona (Co)22 km (14 mi) · reservable
- Palisades Horse Camp23 km (14 mi) · reservable
- Teal24 km (15 mi) · reservable
FAQ
When is the best time to photograph Rio Grande Pyramid?
What time is golden hour at Rio Grande Pyramid?
Where does the sun rise and set at Rio Grande Pyramid?
Can you see the Milky Way from Rio Grande Pyramid?
Do you need a permit to photograph at Rio Grande Pyramid?
How far is Rio Grande Pyramid from Ouray?
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.