The Monument Fire was first reported burning west of Big Bar in Shasta-Trinity National Forest around 6:00 PM on July 30, 2021.

[3] Evacuation warnings were put in place for Del Loma and Big Bar and a portion of Highway 299 was closed three hours due to the fire's growth.

Mandatory evacuations were put in place for Big Bar, Del Loma, and Cedar Flat on August 2.

[10] Additional evacuation warnings were also put in place for Helena, Junction City, Coopers Bar, Red Hill and Canyon Creek.

[2] The fire impacted phone and internet access in the Big Bar area, disconnecting both, starting August 4.

[5] Power lines were de-energized in Big Bar on August 5 due to the fire's proximity to PG&E infrastructure.

[11] Smoke from the Monument Fire impacted air quality in the Sacramento Valley and San Francisco Bay Area.

[2] This article incorporates public domain material from websites or documents of the United States Forest Service.