Location & Surroundings
Keystone Mine is a quarry in California, United States, at 857 m elevation. The nearest larger town is Alta Sierra, 21 km to the west. The national capital Washington is about 3750 km to the east. The nearest airport is Georgetown Airport, 15 km away.
Overview
Keystone Mine is mine in Placer County, California, United States of America.
It is located in Placer County, United States.
Basic Data
- Country United States
- Located in Placer County
- Type mine(s) (MN)
- a site where mineral ores are extracted from the ground by excavating surface pits and subterranean passages
Geography
-
Coordinates
39° 3' 5" N, 120° 50' 3" W
- Elevation 857 m (DEM: 867 m)
- Timezone America/Los_Angeles
- Time Shift GMT -8 (DST -7)
Statistics & Country
- Pop. Density 0 p/km²
- Built-up 0.0%
- Settlement Very low density rural
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 07:39
- Sunrise 07:03
- Sunset 18:39
- Day length 11 h 36 min
Other mine(s)s nearby
Nearby
Weather in Keystone Mine
Current conditions and a 3-day (72-hour) weather forecast for Keystone Mine, updated from the NOAA GFS model.
Now 20.2 C with mostly clear skies and a 3.2 m/s north-easterly wind. Next 24h: 19.4 to 31.7 C, max wind 3.3 m/s. No precipitation expected. Solar peaks near 622 W/m2.
Temperature
20.2 C
Wind
3.2 m/s NE (66 deg)
Humidity
33 %
Pressure
1,015.3 hPa
Clouds
0 %
Precip
0.00 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 20.2 | 3.2 | 66 | 33 | 1,015.3 | - / 0.00 | 0 | 0.0 | n/a |
| 6h | 19.4 | 3.1 | 66 | 33 | 1,014.5 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 12h | 31.7 | 2.5 | 254 | 16 | 1,013.5 | 0.00 / 0.00 | 0 | 211.6 | n/a |
| 18h | 31.4 | 3.3 | 283 | 15 | 1,010.9 | 0.00 / 0.00 | 0 | 621.5 | n/a |
| Tomorrow | 19.9 | 3.1 | 69 | 31 | 1,014.2 | 0.00 / 0.00 | 0 | 30.7 | n/a |
| 30h | 19.0 | 3.1 | 70 | 30 | 1,014.1 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 36h | 31.6 | 2.2 | 257 | 15 | 1,013.0 | 0.00 / 0.00 | 0 | 209.1 | n/a |
| 42h | 31.0 | 3.3 | 264 | 15 | 1,010.6 | 0.00 / 0.00 | 0 | 616.5 | n/a |
| Thursday | 19.6 | 3.1 | 68 | 31 | 1,013.4 | 0.00 / 0.00 | 0 | 29.7 | n/a |
| 54h | 18.9 | 3.0 | 69 | 31 | 1,013.2 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 60h | 31.8 | 2.3 | 273 | 13 | 1,011.4 | 0.00 / 0.00 | 0 | 206.8 | n/a |
| 66h | 31.2 | 3.7 | 290 | 14 | 1,008.5 | 0.00 / 0.00 | 0 | 610.7 | n/a |
| Friday | 20.0 | 3.3 | 66 | 28 | 1,011.0 | 0.00 / 0.00 | 35 | 28.5 | n/a |
Source: NOAA GFS 0.25° (run 2026-10-06 06:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Keystone Mine?
Now 20.2 C with mostly clear skies and a 3.2 m/s north-easterly wind. Next 24h: 19.4 to 31.7 C, max wind 3.3 m/s. No precipitation expected. Solar peaks near 622 W/m2.
Is precipitation expected in the next 24 hours?
No measurable precipitation is expected in the next 24 hours.
When are sunrise and sunset in Keystone Mine today?
Sunrise around 07:03 and sunset around 18:39 (local time). Day length about 11h 36m.
What is the local time in Keystone Mine?
Local time is 07:39. Time zone: America/Los_Angeles (UTC-07:00).
What type of place is Keystone Mine?
Keystone Mine is a mine(s).
What is the elevation of Keystone Mine?
Elevation about 857 m. DEM 867 m.
Where is Keystone Mine located?
It is at 39.05129, -120.83410 (latitude, longitude).
Which country is Keystone Mine in?
It is in United States.
Links
- Wikidata entry Wikidata entry