Mere of Dead Men
The Mere of Dead Men (or Merdelain, meaning "Slow Marching Court" in Elvish) is a swampy area located along the Sword Coast North.
The Mere of Dead Men is a cold saltwater swamp roughly 100 miles long by 30 miles wide along the shore. It is a desolate place full of monsters and few members of the civilized races. The swamp constantly grew over time, swallowing homes and property located close to its boundaries. It is rumoured that the eastern boundary of the Mere is magically bound to the High Road, since attempts to reroute the road were futile and only caused the expansion of the swamp.
The Mere itself is full of trees, vines, quicksand, and hidden islands, and it is generally covered in fog, making visibility very poor. The bones of fallen creatures are clearly visible throughout the Mere. The water is deep enough that it could be navigated on a flat-bottomed boat, but the dark water and hidden obstructions make that choice dangerous.
Inside the Mere are the flooded ruins of a number of castles and settlements. Many of the castles have strange wards that would either strengthen certain magic or negate it.
