Oregon: The mysterious shrieks of Forest Grove
The Forest Grove sound was an unexplained noise described by the Oregonian as a mechanical scream heard in Forest Grove. In February 2016, a high-pitched noise was heard at night in the neighborhood. The department of the forestry determined that their equipment was not the cause of the sound. The noise was first shared by a local resident, who shared a video of it on the city’s Facebook page. It reportedly lasted from 10 seconds to several minutes. Neither the city of Forest Grove public work’s department nor the fire department were able to explain the noise. Throughout February 2016, approximately 200 calls were made to the Forest Grove police department. The shrieks ceased soon after, and no one has ever been able to figure out what caused them or where they might have been coming from. The authorities closed the case as it posed no security risk.