Name: RIDENNA-MEARC (Westron - The Riddermark or The Mark.)
More widely know as Rohan (from Sindarin: Rochand - that is Horse-land.) 
Location: Situated north of Gondor and the Ered Nimrais.
Size: ± 52,800 square miles.
Capital: Edoras (The Courts.)
Political System: Absolute Monarchy. 
People: Widely known as the Rohirrim (from Sindarin: Rochirrim - host of the Horse-lords.) The people of the Mark call themselves the Eorlingas (Rohirric - sons of Eorl.)
Population: ± 51,200 (estimated at time of War of the Ring.)
Language: Westron (Common Speech) & Rohirric.


The Riddermark, home of the Eorlingas (the descendents of Eorl the Young and the Éothéod) is a landlocked, verdant country which sprawls over hundreds of miles of rolling grassland and rich meads. 

The Ered Nimrais (White Mountains) run along the country's southern boundary and form an impenetrable bulwark against attack from the south. This mountain range is said to be the tallest in Middle-Earth for despite its southern latitude its peaks remain snow-capped perennially. No paths or passes (save The Paths of the Dead which run under the mountains) traverse the White Mountains' towering masses.

Rohan's northern marches are bounded by Fangorn Forest to the north west and the River Limlight to the north east. The eastern border of the county runs along the western banks of Anduin the Great, as far as the southern extent of the Emyn Muil, then proceeds south west around the Mouths of the Entwash and follows the western shore of the Mering Stream as far as the Ered Nimrais. The western sector of Rohan is bounded by the River Isen and River Adorn.


NOTES & ACKNOWLEDGEMENTS:-

The charts and maps on these pages have been adapted from existing maps and text found in the published works of J.R.R. Tolkien and other luminaries.

Where maps are presented alongside bodies of text they may be enlarged by double-clicking the smaller image found on that page (the enlarged maps appear in a new window.)

Some maps, such as the schematic representations of the battles at Helm's Deep and The Pelennor Fields, contain an interactive compass i.e. several of the compass points are hot-linked to follow-on maps or to the parent pages/charts for the relevant section. 

SOURCE MATERIAL:- 
The Lord of the Rings - J.R.R. Tolkien
Unfinished Tales - J.R.R. Tolkien (edited by Christopher Tolkien)
The History of Middle-Earth - J.R.R. Tolkien (edited by Christopher Tolkien)
The Letters of J.R.R. Tolkien - J.R.R. Tolkien (edited by Humphrey Carpenter with the assistance of Christopher Tolkien)
The Lord of the Rings, A Reader's Companion - Wayne G Hammond & Christina Scull
The Atlas of Middle-Earth - Karen Wynn Fonstad
The Maps of Tolkien's Middle-Earth - Brian Sibley & John Howe
The Lord of the Rings, Weapons & Warfare - Chris Smith
Oxford English Dictionary
Kingdom Pages of Rohan (and in particular the essays of the Historians Guild): Riddermark: LOTR Plaza
Éile of Rohan's orignal sketch of the Cavalry Dragon Room
The Encyclopedia of Arda - Online Resource
The Thain's Book (tuckborough.net) - Online Resource
Wikipedia (wikipedia.org) - Online Resource
Lord of the Rings Dictionary (quicksilver899.com) - Online Resource
Elendor.net - Online RP forum and Resource