Fen Carn (Elder Speech: Meadow of the Barrows) is a 500 year old elven cemetery situated in Sodden and about 2 miles from the fork where the Chotla and the Ina rivers diverge. An unusually large number of female mandrake plants grow here, which is why Regis stayed here during the summer to harvest them for his mandrake moonshine.
Pyrall Pratt mentions and describes Fen Carn to Geralt when asked about the lost Witcher's swords.
In 1267, Geralt, Dandelion, Milva, and Zoltan Chivay's company passed through here, trying to stay off the main roads, when they spotted Regis.