Root Hold was a plane in the Elemental Chaos and the home of the primordial Grumbar. The plane consisted of endless underground tunnels and halls and had connections to the Dismal Caverns and Dwarfhome in the Astral Sea.[1]


  1. Bruce R. Cordell, Ed Greenwood, Chris Sims (August 2008). Forgotten Realms Campaign Guide. (Wizards of the Coast), p. 66. ISBN 978-0-7869-4924-3.