>Me and my friend exploring outside an old mine shaft.>Checking out tiny caves that probably connect into it.>Hear a gust of wind come out of one, check it out wondering if there's air movement through the shaft.>Hearing the wind pretty consistently every 30 seconds or so.>There's no real build up, just a deep gust that starts and stops after about 10 seconds, can't feel any breeze.>Realize the wind stops whenever we move away from the entrance.>Friend and I start to realize that it's not wind.>It's something breathing.>Sounds fucking huge, we have no idea what kind of animal it could be. It sounds big enough to be a bear or mountain lion.>Can't look into the cave without crawling up into the entrance.>Friend and I getting spooked but curious.>Decide to throw a rock to be 200% sure it's not wind.>Hear it breath louder and more aggressively, sounds like it's coming closer.>Friend and I panic and book it away from the cave.>Spend the rest of the day trying to figure out what the fuck it was.I got a video of it when we thought it was still just wind.
https://youtu.be/_A2IXvtgkD8 