Cedar Fire - Idaho (2025-07-31)

450 acre wildfire (0% contained)
Arco, Idaho, United States
Inciweb page: IDSCF Cedar Fire Idaho Status: Field Active Size: 450 acre Contained: 0%
Cedar Fire - Idaho Fire Growth History
Cedar Fire - Idaho Containment History

Cedar Fire - Idaho Perimeter Growth Animation

Cedar Fire - Idaho Nearby Fires

🔥 Rush (2025-07-12)
7,382 acre wildfire
Salmon, Idaho, United States
🔥 Sawlog (2025-05-03)
2,030 acre wildfire (100% contained)
Anaconda, Montana, United States

Cedar Fire - Idaho Fire Alert Timeline

Aug 06, 2020 Other
Lost River Fire starts on Idaho National Laboratory lands 10 miles east of Arco at 2 a.m., estimated at 1,000 acres. BLM and INL crews responding, forward progress stopped by 7 a.m.
Sources: Crews battling Lost River Fire near Arco | ktvb.com (2020-08-06) Lost River Fire at INL now 50 percent contained - East Idaho News (2020-08-06)
Aug 06, 2020 Other
Lost River Fire 50% contained as of Thursday morning, grown to 1,500 acres before fire lines completed. Fire located southwest of Highway 26, expected full containment by evening.
Sources: Lost River Fire at INL now 50 percent contained - East Idaho News (2020-08-06)
Aug 06, 2020 Other
Lost River Fire fully contained at 910 acres. Idaho National Laboratory Emergency Operations Center response terminated. BLM and INL crews continue monitoring until fully extinguished.
Sources: Lost River fire fully contained at 910 acres - Local News 8 (2020-08-06) Wildfire burns more than 900 acres near Idaho National Laboratory | ktvb.com (2020-08-06)

Cedar Fire - Idaho Fire Alert Timeline

Aug 06, 2020 Other
Lost River Fire starts on Idaho National Laboratory lands 10 miles east of Arco at 2 a.m., estimated at 1,000 acres. BLM and INL crews responding, forward progress stopped by 7 a.m.
Sources: Crews battling Lost River Fire near Arco | ktvb.com (2020-08-06) BLM, INL fire crews stop forward progress of 1,000-acre fire (2020-08-06)
Aug 06, 2020 Other
Lost River Fire 50% contained as of Thursday morning, grown to 1,500 acres before fire lines completed. Fire located southwest of Highway 26, expected full containment by evening.
Sources: Lost River Fire at INL now 50 percent contained - East Idaho News (2020-08-06)
Aug 06, 2020 Other
Lost River Fire fully contained at 910 acres. Idaho National Laboratory Emergency Operations Center response terminated. BLM and INL crews continue monitoring until fully extinguished.
Sources: Lost River fire fully contained at 910 acres - Local News 8 (2020-08-06)