Press release provided by the California State Parks:

On August 8, 2015 California State Park Rangers removed a Marijuana Grow in Humboldt Redwoods State Park near Salmon Creek. Approximately 300 plants were removed from an area cleared of native vegetation. The plants were watered directly from the South Fork Eel River where a pump was located in the river. Trash, fertilizers, pesticides, rodenticides, water hoses, and other supplies were removed from the area. Anyone with information regarding this particular resource crime or others on state park lands please contact California State Parks at (707) 946-1801 or (707) 445-6547.