Located in Bonneville County, Idaho, Grays Lake National Wildlife Refuge is a national wildlife refuge. It sits roughly 38 km (24 mi) NNE of Conda.
Grays Lake National Wildlife Refuge is a National Wildlife Refuge of the United States located in Bonneville and Caribou counties in southeastern Idaho. It has the largest hardstem bulrush marsh in North America. Located in a high mountain valley near Soda Springs, the refuge and surrounding mountains offer scenic vistas, wildflowers, and fall foliage displays. Lands adjacent to the 19,400-acre (79 km2) refuge are primarily wet meadows and grasslands. The refuge provides breeding habitat for species of mammals including moose, elk, mule deer, muskrat, badger, and weasel.From the Wikipedia article “Grays Lake National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Grays Lake National Wildlife Refuge the sunrise point swings a long way through the year: about 56° (ENE) at the June solstice and 122° (ESE) in late December. Sunset moves from 304° (NW) in June to 238° (WSW) in December, and the midday sun climbs to 70° in summer but only 24° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:30 AM | 90° E | 7:38 PM | 271° W | 47° | 12h 08m |
| June solstice (Jun 21) | 5:47 AM | 56° ENE | 9:09 PM | 304° NW | 70° | 15h 22m |
| September equinox (Sep 22) | 7:14 AM | 89° E | 7:25 PM | 271° W | 47° | 12h 11m |
| December solstice (Dec 21) | 7:55 AM | 122° ESE | 4:54 PM | 238° WSW | 24° | 9h 00m |
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
Wildlife is most active in the first and last two hours of daylight — exactly when the light is warmest.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:24 AM | 7:55 AM | 8:39 AM | 4:32 PM | 5:16 PM | 5:48 PM | 9h 21m |
| February | 6:55 AM | 7:24 AM | 8:04 AM | 5:17 PM | 5:57 PM | 6:26 PM | 10h 33m |
| March | 7:10 AM | 7:39 AM | 8:16 AM | 6:55 PM | 7:32 PM | 8:01 PM | 11h 54m |
| April | 6:15 AM | 6:44 AM | 7:23 AM | 7:30 PM | 8:08 PM | 8:38 PM | 13h 24m |
| May | 5:31 AM | 6:03 AM | 6:44 AM | 8:02 PM | 8:43 PM | 9:15 PM | 14h 40m |
| June | 5:11 AM | 5:47 AM | 6:30 AM | 8:24 PM | 9:08 PM | 9:43 PM | 15h 21m |
| July | 5:26 AM | 6:01 AM | 6:43 AM | 8:22 PM | 9:04 PM | 9:38 PM | 15h 03m |
| August | 6:02 AM | 6:32 AM | 7:11 AM | 7:51 PM | 8:30 PM | 9:01 PM | 13h 58m |
| September | 6:38 AM | 7:06 AM | 7:44 AM | 7:00 PM | 7:38 PM | 8:06 PM | 12h 31m |
| October | 7:11 AM | 7:40 AM | 8:18 AM | 6:06 PM | 6:44 PM | 7:13 PM | 11h 05m |
| November | 6:49 AM | 7:19 AM | 8:02 AM | 4:21 PM | 5:03 PM | 5:34 PM | 9h 44m |
| December | 7:19 AM | 7:51 AM | 8:37 AM | 4:06 PM | 4:52 PM | 5:25 PM | 9h 01m |
Local time (America/Boise), 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 Grays Lake National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.0 hours on a moonless night), and the core peaks around 18° 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 | — | -4° | — |
| February | Below 10° in darkness | — | 9° | — |
| March | 5:07 AM – 5:57 AM | 0.8 | 15° | SSE → SSE |
| April | 3:11 AM – 4:51 AM | 1.7 | 17° | SSE → S |
| May | 1:13 AM – 3:53 AM | 2.7 | 18° | SSE → S |
| June | 11:26 PM – 3:26 AM | 4.0 | 18° | SSE → SSW |
| July | 11:13 PM – 2:03 AM | 2.8 | 18° | S → SSW |
| August | 10:19 PM – 11:59 PM | 1.7 | 17° | S → SSW |
| September | 9:15 PM – 10:05 PM | 0.8 | 14° | SSW → SSW |
| October | Below 10° in darkness | — | 9° | — |
| November | Below 10° in darkness | — | -2° | — |
| 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: 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 ≈ 21.86 mag/arcsec². Aurora needs roughly Kp 6.5+ 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 34% average cloud cover) and December as the cloudiest (75%). 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 | 34 | 34 | 62 | 74 | 83 | 88 | 95 | 95 | 86 | 77 | 62 | 43 |
| Low °F | -25 | -27 | -20 | -5 | 11 | 23 | 35 | 32 | 22 | 3 | -20 | -25 |
| Precip. (in) | 2.8 | 2.5 | 2.4 | 2.5 | 2.4 | 1.9 | 1.0 | 1.2 | 1.8 | 2.0 | 2.5 | 2.9 |
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 national wildlife refuge
- Migration peaks bring the largest concentrations — see the birding calendar for this state.
- Use auto-loop roads as mobile blinds; animals often tolerate vehicles more than people on foot.
- Stay on designated routes and keep a respectful distance — if an animal changes behavior, you are too close.
- A 400–600 mm lens (or a crop body) is the usual tool for birds.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Spring and autumn migration are the highlights; winter brings waterfowl to many southern refuges.
Suggested gear: Telephoto lens (400 mm+), Bean bag for car window, Binoculars. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
Drones: Launching or landing drones on National Wildlife Refuge lands generally requires a special use permit from the refuge manager, and wildlife disturbance rules apply everywhere.
Nearby photo spots
Other locations within 40 km of Grays Lake National Wildlife Refuge, closest first.
Campgrounds nearby (Recreation.gov)
- Cutthroat Trout Campground8.3 km (5.1 mi)
- Caribou Mountain Guard Station13.0 km (8.1 mi) · reservable
- Jensen Cabin26 km (16 mi) · reservable
- Blackfoot Reservoir Campground28 km (18 mi) · reservable
- Mccoy Creek Campground30 km (19 mi)
FAQ
When is the best time to photograph Grays Lake National Wildlife Refuge?
What time is golden hour at Grays Lake National Wildlife Refuge?
Where does the sun rise and set at Grays Lake National Wildlife Refuge?
Can you see the Milky Way from Grays Lake National Wildlife Refuge?
Do you need a permit to photograph at Grays Lake National Wildlife Refuge?
How far is Grays Lake National Wildlife Refuge from Conda?
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.