Spanish police investigating reports of a cannabis farm stumbled across the largest illegal subterranean cannabis plantation they have ever found hidden underneath a tiny hut. The plantation was found Hidden in a 300 square meter (3229 feet) underground facility located on a farm in Cerro de los Palos, in the province of Toledo, located in Central Spain, on 5th October. The den in which the illegal cultivation was hidden was dug four meters deep on a farm owned by one of the detainees, as reported in the statement obtained by Newsflash. In the video it can be seen how police approach what seems to be a little hut. Once they descend down the stairs, they stumble across a sophisticated laboratory with 1,022 cannabis plants. The installation had a ventilation system and it comprised area of approximately 300 square meter (3229 feet). At the beginning of September, parallel investigations that were being carried out in nearby areas revealed the possible existence of a new crop that had been installed in Toledo in August. Since then, the National Police carried out a close collaboration that allowed confirming the suspicions on the ground. Thus, in just twenty days, the investigators located the exact place where the illegal crop was hidden.