An account in Del Norte County, California

I was camping at Del Norte Campground outside of Crescent City California. I woke up very early in the morning before anyone else. It was about dawn. I was walking to the campground bathroom and I heard the loudest yelling I've ever heard that is hard to explain in words. It echoed all thru the mountains. It was a yell by something, but not a man, bear, or wildcat. It took place 3 times. Needless to say I ran the rest of the way to the bathroom and my heart was pounding. I don't know how else to explain it but with a yell or a hollar but so loud it would echoed off the trees and thru the mountains. I didn't see anything, but I was too afaid to do any looking. A while after that I was watching a big foot documentary, where someone had recorded sounds they thought to be big foot. This was the exact same hollar I heard. It made the hair on my arms stand up. I've never seen that video since and I would love to see and hear it again.