Helvetia is a ghost town in Pima County, Arizona. The nearest town is Corona de Tucson, about 12.0 km (7.5 mi) away (Helvetia lies S of town).
Helvetia is a ghost town in Pima County, Arizona, United States that was settled in 1891 and abandoned in the early 1920s. Helvetia is an ancient name for Switzerland. Today, only the Ray Mine and cemetery are visitable, as the rest of the town has been fenced off due to active mining operations.From the Wikipedia article “Helvetia, Arizona”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Helvetia the sunrise point swings a long way through the year: about 62° (ENE) at the June solstice and 117° (ESE) in late December. Sunset moves from 299° (WNW) in June to 243° (WSW) in December, and the midday sun climbs to 82° in summer but only 35° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:28 AM | 90° E | 6:35 PM | 271° W | 58° | 12h 07m |
| June solstice (Jun 21) | 5:19 AM | 62° ENE | 7:33 PM | 299° WNW | 82° | 14h 14m |
| September equinox (Sep 22) | 6:12 AM | 89° E | 6:21 PM | 271° W | 58° | 12h 09m |
| December solstice (Dec 21) | 7:20 AM | 117° ESE | 5:24 PM | 243° WSW | 35° | 10h 04m |
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
Weathered wood and rusted metal show texture best in low-angle light; overcast skies suit interiors and moody black-and-white work.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:58 AM | 7:24 AM | 8:00 AM | 5:06 PM | 5:42 PM | 6:08 PM | 10h 18m |
| February | 6:41 AM | 7:06 AM | 7:40 AM | 5:37 PM | 6:10 PM | 6:35 PM | 11h 04m |
| March | 6:10 AM | 6:34 AM | 7:06 AM | 5:59 PM | 6:32 PM | 6:56 PM | 11h 58m |
| April | 5:30 AM | 5:55 AM | 6:28 AM | 6:20 PM | 6:52 PM | 7:18 PM | 12h 57m |
| May | 5:00 AM | 5:27 AM | 6:01 AM | 6:39 PM | 7:14 PM | 7:41 PM | 13h 47m |
| June | 4:50 AM | 5:18 AM | 5:54 AM | 6:55 PM | 7:31 PM | 7:59 PM | 14h 13m |
| July | 5:01 AM | 5:29 AM | 6:04 AM | 6:56 PM | 7:31 PM | 7:58 PM | 14h 02m |
| August | 5:23 AM | 5:49 AM | 6:22 AM | 6:35 PM | 7:08 PM | 7:34 PM | 13h 20m |
| September | 5:44 AM | 6:08 AM | 6:40 AM | 5:58 PM | 6:31 PM | 6:55 PM | 12h 23m |
| October | 6:02 AM | 6:27 AM | 7:00 AM | 5:19 PM | 5:52 PM | 6:17 PM | 11h 25m |
| November | 6:27 AM | 6:53 AM | 7:28 AM | 4:50 PM | 5:25 PM | 5:51 PM | 10h 32m |
| December | 6:50 AM | 7:17 AM | 7:54 AM | 4:45 PM | 5:22 PM | 5:49 PM | 10h 05m |
Local time (America/Phoenix), 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 Helvetia, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 6.3 hours on a moonless night), and the core peaks around 29° above the southern horizon. Our light-pollution model puts the sky at about Bortle 4 (rural / suburban transition), good enough for detailed Milky Way images.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 2° | — |
| February | 4:52 AM – 5:42 AM | 0.8 | 18° | SE → SE |
| March | 3:03 AM – 5:03 AM | 2.0 | 26° | SE → SSE |
| April | 12:57 AM – 4:27 AM | 3.5 | 29° | SE → S |
| May | 10:57 PM – 3:47 AM | 4.8 | 29° | SE → SSW |
| June | 9:10 PM – 3:30 AM | 6.3 | 29° | SE → SW |
| July | 9:07 PM – 2:07 AM | 5.0 | 29° | SSE → SW |
| August | 8:36 PM – 12:06 AM | 3.5 | 29° | S → SW |
| September | 7:52 PM – 10:02 PM | 2.2 | 26° | SSW → SW |
| October | 7:13 PM – 8:03 PM | 0.8 | 18° | SW → SW |
| November | Below 10° in darkness | — | 4° | — |
| December | Below 10° in darkness | — | -18° | — |
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: 4 Bortle 4 — Rural / suburban transition. Light domes are visible in several directions; the Milky Way is clear but lacks detail near the horizon. Modeled zenith brightness ≈ 21.1 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show May as the clearest month (about 20% average cloud cover) and July as the cloudiest (62%). June 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 | 76 | 83 | 86 | 95 | 104 | 109 | 105 | 103 | 100 | 95 | 86 | 78 |
| Low °F | 17 | 11 | 22 | 31 | 36 | 49 | 59 | 59 | 49 | 28 | 20 | 19 |
| Precip. (in) | 1.0 | 0.8 | 0.6 | 0.2 | 0.1 | 0.5 | 3.9 | 3.1 | 1.9 | 0.6 | 0.6 | 1.0 |
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 ghost town
- Look for details: door hinges, faded signs, square nails and window frames tell the story.
- Leave everything as you found it; removing artifacts from public land is illegal.
- Respect private property and closures: many ghost towns are on private land or protected historic sites — never enter unstable buildings.
- For interiors with windows, blend two exposures (one for inside, one for the view) instead of relying on HDR alone.
- Old buildings under the Milky Way make strong night images in dark rural skies.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: High-elevation mining towns are reachable mostly from June to October; desert ghost towns are best in spring and autumn.
Suggested gear: Wide-angle lens, Tripod, Headlamp, Sturdy boots. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
Private property: Many ghost towns sit on private land or protected historic sites. Respect signs, never enter unstable buildings and leave artifacts in place.
Nearby photo spots
Other locations within 25 km of Helvetia, closest first.
Cave
Ghost Town
Mountain Peak
Ghost Town
Canyon
Mountain Peak
Scenic ViewpointCampgrounds nearby (Recreation.gov)
- Kentucky Camp Cabin And Headquarters Building13.4 km (8.3 mi) · reservable
- Kent Springs Cabin17.5 km (10.8 mi) · reservable
FAQ
When is the best time to photograph Helvetia?
What time is golden hour at Helvetia?
Where does the sun rise and set at Helvetia?
Can you see the Milky Way from Helvetia?
Do you need a permit to photograph at Helvetia?
How far is Helvetia from Corona de Tucson?
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.