Board Thread:General Discussion/@comment-12323841-20130723222947/@comment-8265737-20130805132752

I think I've found them all. The trouble is...some of them I've just passed and "discovered" but haven't been in them, and now I don't know if I've been in them or not.

Only the other day I realised I'd not been in Yngol Barrow yet, so went through it to discover I needed the Coral Dragon Claw. After several days of searching through all of my houses (messy in real life, messy in Skyrim) I finally found I'd stuffed the Claw in a wardrobe in the College of Winterhold. Makes sense as I'd bought it in Winterhold...

Anyway - found all locations, no idea how many I've been in, but I'd guess at "most of them".