Haunted Mere
The Two Towers #99 (x3)
Location
4 (5)
Marsh.  

Mire 2. Forced: When Haunted Mere is discarded by the Mire keyword, search the encounter deck and discard pile for an Undead enemy, reveal it, and add it to the staging area. Shuffle the encounter deck.

Travel: Exhaust Smeagol to travel here.

"They lie in all the pools, pale faces, deep deep under the dark water." -Frodo, The Two Towers