Hello,
In this dungeon there is a blocked room up some stairs in the large cavern. At the top of these stairs are flames through the floor (remember them?). Anyway you can go up the stairs and only go so far because the room with some loot in it is blocked by a cave in and I just can't figure out how to loot that chest and stuff in that room. I'm sure it could be done with magic at a high level but typically you might do the Horn quest around lvl 10, as I am doing so majic will be out of the question.

I'm dieing to know what's in that chest so please help!

Getting there involves using http://www.uesp.net/wiki/Skyrim:Ustengrav

I had to go back after I found out you could use the whirlwind sprint over empty space like the broken bridge.

Yeah whirlwind sprint gets you there.

Thanks everyone. Now I need to return and figure out where to start from but at least I know it can be done.