Shadowfen region mapThe Elder Scrolls Online (TESO) Maps
On the border with Morrowind, the Shadowfen region has had more contact with Tamrielic civilization than most of Black Marshâdue primarily to the activities of the Dunmeri slavers who once operated out of the city of Stormhold. Now the Argonians are back in charge.

Points of interest located on this map
Stormholdmark on map
Stormhold is an ancient city in The Elder Scrolls Online. It's under control of the Ebonheart Pact, led by Jorunn the Skald-King. It lies in the region of Shadowfen in Black Marsh.
References
Tamriel
Tamriel is a fictional continent where The Elder Scrolls Online is set. When the game first launches, there will be limited access to all areas, but over time with new expansions, game action will take place across the entire continent. Tamriel contains nine regions: Cyrodiil, Black Marsh, Elsweyr, Hammerfell, High Rock, Morrowind, Skyrim, Summerset Isle, Valenwood.
Ebonheart Pact
The Ebonheart Pact stretched over the provinces of Skyrim, Morrowind and Black Marsh. Its capital was the city of Mournhold, located on the mainland of Morrowind, the homeland of the Dunmer.