FRESNO, Calif. — One person has been sentenced to prison in connection with a pot farm found in a prehistoric site in the Domeland Wilderness in the Sequoia National Forest.

Carlos Piedra-Murillo, 30, of Mexico, was sentenced to two years and one month in prison for conspiring to manufacture, distribute and possess with intent to distribute marijuana.

Authorities located more than 8,000 marijuana plants, a .22-caliber rifle, a pellet rifle and .22‑caliber ammunition in August 2016.

According to the U.S. Department of Justice:

The marijuana cultivation operation caused extensive environmental damage. It covered about 10 acres and was within the burned area of the 2000 Manter Fire. Some of the new vegetation and trees that sprouted after the fire had been cut and trimmed to make room for the marijuana plants. Water was diverted from a tributary stream of Trout Creek, a major tributary to the Kern River. Fertilizer and pesticides, including illegal carbofuran and zinc phosphide, highly toxic pesticides from Mexico, were found at the site. Large piles of trash were found near the campsite. The moving of soil to accommodate a basin around each marijuana plant caused extensive damage to a large prehistoric Tűbatulabal archaeological site. Holes were dug in the middle of the archaeological site and artifacts were found scattered on the surface among the marijuana plants. 

Also charged were Juan Carlos Lopez, 32, of Lake Elsinore; Rafael Torres-Armenta, 30, and Javier Garcia-Castaneda, 38, both of Mexico. Torres, Lopez, and Garcia have also pleaded guilty and are awaiting sentencing.