Awesome Cave Dive

Alright so first off, I had to delete my old minecraft world because I couldn't transfer the files from one computer to the other. But I have created a new file, it's an amazing world layout, my new house is sweet, and I just had the most epic cave dive ever. I just traveled over to a mountain, and saw a cave opening in the side of it, but this cave literally carried on for miles. I was in there for like 3 hours finding all this stuff. But when I went to leave, I found an area of sandstone that was near the surface. So I destroyed it and I found out, that where I went in, and where I exited, were only like 15 blocks away from each other. But I seriously found like 120 red stone, 80 iron, 1 diamond, 11 pieces of gold, and all the other crap I got from mobs that I killed. I wish I recorded it though. I would've been able to make some epic videos with the footage.