The web team for the Lord of the Rings Online has published another of their Exploring Middle-earth articles. The focus of this installment is the abandoned delving, "Sarnur":

In the long-abandoned delving named Sarnúr, the Dourhand dwarves and their evil allies are mustering forces to begin a final assault upon the Longbeards of Thorin’s Hall and the Elves of Duillond. Adventurers may want to see if they can assist the Blue Stone Garrison in their goal to remove the threat from Sarnúr.

You can read the article here, or here from the European site.