BIG GRASS Fire (OR)

Active · 5,000 acres · started 2026-07-23 · updated 2026-07-24

Satellite image: NASA MODIS (infrared — active fire in orange/red, from yesterday).

Heat detections: NASA FIRMS (last 48h).

Burning across 5,000 acres of federal land in Malheur County, Oregon, the active BIG GRASS Fire has triggered eight heat detections by NASA satellites over the past 48 hours as it continues to burn under the management of the BLM. Originating on July 23, 2026, the ongoing blaze demonstrates the continuous operational presence required by federal agencies on designated public lands.