Bigfoot Chasing Mountain Bikers, *LOUD Growling & Yells

Footage was shot August 17, 2019 in the Gifford Pinchot National Forest.
Our group of mountain bikers were chased down a very remote mountain top by a very loud
?Bigfoot? who you can hear screeching multiple times throughout the video. The sound is muffled (thanks gopro case) and sounds like a large truck or plane passing by.
The guy filming has grown up in the area and never heard noises like that, neither have any of the other riders, but we all have heard of stories and sightings of him in this area.