Fields Fire
1,280 acres
100% contained
California

No longer on the NIFC active list. The last reading we recorded was 1,280 acres at 100% contained on 2026-08-12. Incidents drop off the feed when they are contained or declared out — the feed does not tell us which, so we do not guess. This page is kept as the record of what we read while it burned.

Source: the federal NIFC/WFIGS Incident Locations feed, re-read every 30 minutes. Last read 2026-08-12 01:02 UTC. Nothing on this page is estimated.

The numbers
StateCalifornia
Size1,280 acres
Containment100%
CauseUndetermined
DiscoveredJul 23
Personnel assignednot reported
Day-by-day, as we read it
DateAcresContainedChange
2026-08-091,280100%
2026-08-101,280100%no change
2026-08-111,280100%no change
2026-08-121,280100%no change
Trails within 100 km
Mist Trail to Vernal Fall — 80 km away, live AQI and conditions
Half Dome — 83 km away, live AQI and conditions

Distance is not the whole question — smoke carries much further than fire, and trailheads and roads close well before flames reach them. Each trail page shows live AQI; check the managing agency and inciweb.nwcg.gov for closures before you drive.

What does “100% contained” mean here?

Containment is the share of the fire's perimeter that crews have a control line around — not how much of the fire is out. A 95% contained fire can still put up plenty of smoke; a 0% contained fire is still growing freely.

Where do these numbers come from?

The NIFC/WFIGS Incident Locations feed — the official interagency record used by fire managers. We re-read it every 30 minutes and stamp the read time. The day-by-day table is our own record of those reads; acres sometimes drop when a perimeter is remapped, and we label that rather than smoothing it out.

Can I still hike near it?

Check the managing agency and inciweb.nwcg.gov for closures first — they close roads and trailheads well ahead of the fire. Then check the live AQI on the trail page itself; smoke is usually what decides the day, not flames.