Greetings. Me and my friend were around looking at places we hadn't explored yet in Frostfire Ridge, when we found this cave in Southwind Cliffs that is blocked by rubble.One can click the rubble, and when you do, it says "Huge boulders block the cave enterance". I tried looking it up on WoWhead and googled it, and all I found was This: http://www.wowhead.com/quest=33975 Apparently all treasure in Frosfire have "quests" like these attached to them.
We've been looking around for an hour now, and we can't find any way to get inside. We've been all over the place,and we have even looked for explosives. :P If anyone know how to get inside, we'd love to know! Sometimes the rubble dosen't load until you are very close, and when that happens you can see a chest inside.
Screenshots below for those who are curious about the location:
http://i.imgur.com/CKiVAFV.jpg
http://i.imgur.com/5kcoC7a.jpg