Blackrock Caverns is a dungeon in the World of Warcraft game. The level range for the normal dungeon is 77-80. The location of the entrance to Blackrock Caverns is in the Searing Gorge zone on the continent of Eastern Kingdoms. The instance was released in the Cataclysm expansion. The dungeon contains 5 bosses. The end boss of Blackrock Caverns is Ascendant Lord Obsidius.
Blackrock Cavern was introduced in Cataclysm and is one of the first dungeons that you will encounter as you level up from 80. The dungeons entrance and location is inside the Blackrock Mountain, the large mountain that contains a number of other instances such as Upper Blackrock Spire and Lower Blackrock Spire. When the dungeon was first released, it was a requirement that the player had to locate the entrance before they could queue for Looking For Group. It was soon established that this was a bad idea and cancelled.
If you`re in Mount Hyjal, there is a goblin who will provide you with a port to the dungeon if you need to get there however there is no point, just use the Looking For Group finder.