Lord Zsezse Works has a new battlemat for you to play on: In the Bowels of the Mountain. Available on Wargame Vault.
From the preview:
This set contains the following:
– A big map with a part of Gem Mine and an entrance into the deep
– Mountain parts – Hide the unknown parts of the map!
– Poster sized 200dpi color jpg images; and U.S. Letter sized pdf with the map broken into pages