Mill Creek Wilderness is a wilderness area in Jefferson County, Oregon. The nearest town is Prineville, about 32 km (20 mi) away (Mill Creek Wilderness lies NE of town).
Mill Creek Wilderness is a wilderness area located in the Ochoco National Forest of central Oregon. It was established in 1984 and comprises 17,400 acres (7,040 ha). Of the three wilderness areas in the Ochoco National Forest - Mill Creek, Bridge Creek, and Black Canyon - Mill Creek is the largest and most heavily used. The first sawmill in Crook County was located on Mill Creek, hence its name.From the Wikipedia article “Mill Creek Wilderness”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Mill Creek Wilderness the sunrise point swings a long way through the year: about 55° (NE) at the June solstice and 123° (ESE) in late December. Sunset moves from 305° (NW) in June to 237° (WSW) in December, and the midday sun climbs to 69° in summer but only 22° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:06 AM | 90° E | 7:15 PM | 271° W | 45° | 12h 09m |
| June solstice (Jun 21) | 5:18 AM | 55° NE | 8:51 PM | 305° NW | 69° | 15h 33m |
| September equinox (Sep 22) | 6:50 AM | 89° E | 7:01 PM | 271° W | 46° | 12h 11m |
| December solstice (Dec 21) | 7:36 AM | 123° ESE | 4:26 PM | 237° WSW | 22° | 8h 50m |
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
Wilderness areas reward those who camp: being on location at sunrise and in the dark is the main advantage over day visitors.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:03 AM | 7:36 AM | 8:22 AM | 4:03 PM | 4:49 PM | 5:21 PM | 9h 13m |
| February | 6:33 AM | 7:03 AM | 7:44 AM | 4:50 PM | 5:31 PM | 6:01 PM | 10h 28m |
| March | 6:46 AM | 7:15 AM | 7:54 AM | 6:30 PM | 7:08 PM | 7:37 PM | 11h 53m |
| April | 5:48 AM | 6:19 AM | 6:58 AM | 7:08 PM | 7:47 PM | 8:17 PM | 13h 28m |
| May | 5:02 AM | 5:35 AM | 6:18 AM | 7:41 PM | 8:23 PM | 8:57 PM | 14h 48m |
| June | 4:41 AM | 5:18 AM | 6:02 AM | 8:05 PM | 8:49 PM | 9:26 PM | 15h 32m |
| July | 4:57 AM | 5:32 AM | 6:16 AM | 8:02 PM | 8:45 PM | 9:21 PM | 15h 13m |
| August | 5:34 AM | 6:06 AM | 6:46 AM | 7:29 PM | 8:09 PM | 8:41 PM | 14h 03m |
| September | 6:13 AM | 6:42 AM | 7:20 AM | 6:36 PM | 7:15 PM | 7:44 PM | 12h 33m |
| October | 6:49 AM | 7:18 AM | 7:57 AM | 5:40 PM | 6:19 PM | 6:49 PM | 11h 01m |
| November | 6:28 AM | 6:59 AM | 7:43 AM | 3:52 PM | 4:36 PM | 5:07 PM | 9h 37m |
| December | 6:59 AM | 7:33 AM | 8:21 AM | 3:36 PM | 4:24 PM | 4:57 PM | 8h 51m |
Local time (America/Los Angeles), 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 Mill Creek Wilderness, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 3.5 hours on a moonless night), and the core peaks around 17° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -3° | — |
| February | Below 10° in darkness | — | 8° | — |
| March | 4:56 AM – 5:36 AM | 0.7 | 13° | SSE → SSE |
| April | 2:53 AM – 4:23 AM | 1.5 | 16° | SSE → S |
| May | 1:00 AM – 3:20 AM | 2.3 | 17° | SSE → S |
| June | 11:18 PM – 2:48 AM | 3.5 | 17° | SSE → SSW |
| July | 11:03 PM – 1:23 AM | 2.3 | 17° | S → SSW |
| August | 10:02 PM – 11:22 PM | 1.3 | 16° | SSW → SSW |
| September | 8:54 PM – 9:24 PM | 0.5 | 13° | SSW → SSW |
| October | Below 10° in darkness | — | 7° | — |
| November | Below 10° in darkness | — | -3° | — |
| December | Below 10° in darkness | — | -20° | — |
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: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.84 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 24% average cloud cover) and January 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 | 62 | 63 | 75 | 83 | 93 | 98 | 104 | 101 | 99 | 89 | 71 | 57 |
| Low °F | -11 | 1 | 8 | 22 | 25 | 31 | 38 | 37 | 28 | 15 | -2 | -8 |
| Precip. (in) | 1.9 | 1.7 | 1.7 | 1.7 | 1.7 | 1.3 | 0.2 | 0.5 | 0.7 | 1.4 | 1.9 | 2.6 |
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 wilderness area
- Pack weight matters: a single zoom and a light tripod cover most situations.
- Night skies are often among the darkest in the country.
- Motorized and mechanized equipment, including drones, is prohibited in designated wilderness.
- Group size limits and permits may apply; check with the managing agency.
- Practice Leave No Trace — camp on durable surfaces away from lakes and streams.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Most high wilderness is snow-free from July to September; lower deserts are best in spring and autumn.
Suggested gear: Lightweight tripod, Spare batteries, Headlamp, Navigation. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
Drones: Drones may not take off from or land in federally designated wilderness, where mechanized equipment is prohibited under the Wilderness Act.
Nearby photo spots
Other locations within 40 km of Mill Creek Wilderness, closest first.
Mountain Pass
Wilderness Area
Mountain Peak
State Park
Ghost Town
Mountain Peak
National ForestCampgrounds nearby (Recreation.gov)
- Ochoco Divide Group Site11.3 km (7.0 mi) · reservable
- Ochoco Ranger Rental11.9 km (7.4 mi) · reservable
- Ochoco Forest Camp12.0 km (7.4 mi) · reservable
- Walton Lake15.8 km (9.8 mi) · reservable
FAQ
When is the best time to photograph Mill Creek Wilderness?
What time is golden hour at Mill Creek Wilderness?
Where does the sun rise and set at Mill Creek Wilderness?
Can you see the Milky Way from Mill Creek Wilderness?
Do you need a permit to photograph at Mill Creek Wilderness?
How far is Mill Creek Wilderness from Prineville?
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.