He looks like a Newfie mix

am I correct? c:

His mother was a pure bred Golden Retriever, his father is a mystery. My grandpa lived up in the mountains, with very few neighbors, and had Never seen a male dog on the property, so there is no telling.

Some of his siblings are short haired little things, and some are huge and hairy like him. lol

When my grandfather passed, I went up and got Thunder, as nobody else wanted to take him because of his size, and the fact that he'd never been off the mountain. He's an amazing dog though.