Slough Canyon Fire
Active
Grand County, Utah · Discovered August 15, 2026
Source: NIFC/IRWIN (interagency) · Last upstream update 7 hours ago · Perimeter mapped 7 hours ago (NIFC WFIGS)
Slough Canyon Fire
The Slough Canyon Fire fire has burned 4,774 acres in Grand County, Utah. Crews have reached 80% containment. It has shown no measurable growth in the last 24 hours. Wind at the fire is blowing 7 mph toward the W, with gusts to 10 mph. Air quality near the fire is good (AQI 29). 1 personnel are assigned to the incident.
Latest official update
August 24, 2026The Slough Canyon Fire started on Saturday, August 15th in a remote area of the Book Cliffs on Uintah and Ouray Tribal Lands. Initial attack response to the fire included two helicopters and two engines. This is a full suppression fire where firefighter safety continues to be the highest priority. The fire is now in a suppression repair status.
Read the full update on InciWebPosted by the incident management team on InciWeb (inciweb.wildfire.gov).
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Incident timeline
Generated automatically from official feeds the moment they change: size, containment, evacuation zones, aircraft, and incident team updates.
Containment rose to 80%
2 days ago · September 27, 2026Containment rose to 75%
14 days ago · September 15, 2026Containment rose to 70%
15 days ago · September 14, 2026New perimeter mapped at 4,742 acres (national perimeter feed)
16 days ago · September 13, 2026Containment rose to 63%
25 days ago · September 4, 2026Grew 106 acres in 2 days to 4,774 acres
30 days ago · August 30, 2026Containment rose to 36%
31 days ago · August 29, 2026Containment rose to 25%
32 days ago · August 28, 2026Grew 168 acres in 47 hours to 4,668 acres
32 days ago · August 28, 2026Containment rose to 10%
33 days ago · August 27, 2026Grew 300 acres in 23 hours to 4,500 acres
34 days ago · August 26, 2026Grew 1,302 acres in 24 hours to 4,200 acres
35 days ago · August 26, 2026Mapped size revised down to 2,898 acres (from 3,000)
36 days ago · August 24, 2026Official incident page published on InciWeb: Slough Canyon
36 days ago · August 24, 2026Grew 2,230 acres in 23 hours to 3,000 acres
38 days ago · August 22, 2026Grew 192 acres in 5 hours to 770 acres
39 days ago · August 21, 2026Grew 228 acres in 19 hours to 578 acres
39 days ago · August 21, 2026Containment dropped to 0% (from 75%)
40 days ago · August 21, 2026Grew 222 acres in 31 hours to 350 acres
40 days ago · August 21, 2026Grew 48 acres in 20 hours to 128 acres
41 days ago · August 19, 2026Grew 40 acres in 24 hours to 80 acres
42 days ago · August 18, 2026Grew 39 acres in 2 days to 40 acres
43 days ago · August 17, 2026Fire first listed in official incident feeds at 1 acres
45 days ago · August 15, 2026
Raw growth & containment readings
| Recorded | Size | Contained |
|---|---|---|
| 9/27/2026, 10:46:24 PM | 4,774 acres | 80% |
| 9/15/2026, 11:11:19 PM | 4,774 acres | 75% |
| 9/14/2026, 11:06:04 PM | 4,774 acres | 70% |
| 9/11/2026, 11:57:26 PM | 4,774 acres | 66% |
| 9/9/2026, 11:16:29 PM | 4,774 acres | 65% |
| 9/4/2026, 10:59:01 PM | 4,774 acres | 63% |
| 9/3/2026, 11:14:18 PM | 4,774 acres | 35% |
| 8/30/2026, 11:48:20 PM | 4,774 acres | 34% |
| 8/29/2026, 11:25:10 PM | 4,698 acres | 36% |
| 8/28/2026, 11:00:52 PM | 4,668 acres | 25% |
| 8/27/2026, 11:53:46 PM | 4,500 acres | 10% |
| 8/26/2026, 11:31:08 PM | 4,500 acres | 0% |
| 8/26/2026, 12:01:38 AM | 4,200 acres | 0% |
| 8/24/2026, 11:49:03 PM | 2,898 acres | 0% |
| 8/22/2026, 10:55:00 PM | 3,000 acres | 0% |
| 8/22/2026, 2:54:25 AM | 578 acres | 0% |
| 8/21/2026, 11:41:43 PM | 770 acres | 0% |
| 8/21/2026, 6:32:26 PM | 578 acres | 0% |
| 8/21/2026, 12:38:53 AM | 536 acres | 0% |
| 8/21/2026, 12:07:26 AM | 350 acres | 0% |
Recorded by Fire Nearby each time upstream data changes.
About this data
Fire Nearby aggregates official incident data and shows exactly when each value was last updated. For evacuation decisions, always follow instructions from local emergency officials and check county emergency management channels.