The earliest report documents an unauthorized drone reported over the power plant on December 18, 2024. A December 24 record documents a sheriff’s patrol extending from Rock Springs Airport to the Jim Bridger Power Plant in search of unauthorized drone activity.

On December 29, a deputy personally observed three separate sets of red-and-green flashing lights moving near the southwest side of the plant. The deputy attempted to detect the objects using a drone-scanner application, searched the surrounding area using night-vision and infrared equipment, and notified the Wyoming Office of Homeland Security.

The December 29 report states that the incident information was forwarded for dissemination to appropriate federal agencies.

February 2025 records document multiple reported sightings near the surge pond, switchyard, and coal pile, including footage captured on plant security cameras.

One reported object was described as approximately the size of a Mini Cooper and believed to be about 1,000 feet above the ground.

A March 9 report documents a witness observing a woman beside a white truck near the lower switchyard holding what appeared to be a drone controller, although the witness did not directly observe a drone.

A March 13 report documents flashing red-and-green lights moving through smoke plumes near cooling towers 2 and 3. The responding deputy submitted the observation through a Wyoming Office of Homeland Security reporting system.

Taken together, these records document repeated drone-related reports, direct law-enforcement observation, plant security-camera detections, targeted patrol activity, and notifications to state and federal authorities over a period of approximately three months.

The agency-produced file for incident S25-05266 contains pages 1 and 3 of a three-page report. Page 2 was not included in the records released to Illume Umbra, and the omission is preserved as received.