A large and unusual early morning incident is now under investigation after a horse trailer loaded with cannabis caught fire along Highway 299 on March 18, raising serious questions about the origin, legality, and environmental impact of the load.
According to reports, California Highway Patrol Redding Dispatch notified the Trinity County Sheriff’s Office of a vehicle fire near mile marker 69.6 at approximately 5:41 a.m., just west of the Shasta County line near the Buckhorn Summit Sandhouse.
When emergency crews arrived, they discovered a horse trailer engulfed in flames, but what was inside quickly turned this into something far beyond a typical vehicle fire.
Dozens of garbage bags packed with processed cannabis were recovered from the trailer, with each bag estimated to contain between 25 and 30 pounds. Based on those estimates, the total load could exceed 1,000 to 2,000 pounds or more, pointing to a large-scale operation rather than personal or small legal transport.
Fire crews from the Lewiston Volunteer Fire Department and CAL FIRE worked to contain the blaze, hosing down both the trailer and surrounding vegetation to prevent further spread.
One responder at the scene indicated the fire appeared to have started in the top center of the cannabis pile, a detail that may become significant as investigators work to determine the cause. While accidental ignition is possible, factors such as heat buildup, improper storage, or contamination could all be considered.
Authorities also noted a major red flag. The license plate on the trailer did not return usable identifying information. However, deputies reported they may already have an idea of who the trailer belongs to, and an investigation is ongoing.
The location of the incident adds another layer of interest. Highway 299 is a major corridor through remote Northern California terrain and has long been known as a route connecting rural grow regions to larger distribution areas.
Beyond the fire itself, environmental concerns quickly became a priority. Due to runoff from fire suppression efforts, including water potentially contaminated with burned plastic and cannabis material, officials on scene discussed whether the area should be declared hazardous. The presence of a nearby creek drainage raised additional concerns about possible contamination, and Environmental Health may be brought in to assess and oversee cleanup efforts.
Incidents like this highlight ongoing challenges across the North State, where large-scale cannabis operations, both legal and illegal, continue to impact communities, infrastructure, and the environment.
The California Highway Patrol is handling the investigation into the source and legality of the cannabis load.
At this time, no official arrests or ownership confirmations have been announced.


