Named for their everlasting snow covered peaks, the White Mountains, also called Ered Nimrais in Sindarin, are an important mountain range in the southwest of the known parts of Middle-earth.
In the latter part of the Third Age, they formed the border between Gondor in the south and Rohan in the north. They range from Mount Mindolluin above Minas Tirith in the east, to the peaks of Thrihyrne in the north west, near the valley of Helm's Deep. The Gap of Rohan separates this northern spur from the Misty Mountains. A lower spur, separated south of the Thrihyrne, runs towards the coast of Andrast. The total length of this range is over 900 km.
The mountain range and the near forests are the ancient home of the mysterious Druadan. The Oathbreakers have lived beneath Dwimorberg, the Haunted Mountain, through the Dark Door and into the Paths of the Dead under this mountain range since they were cursed by Isildur. On the southern side, various cities and fortresses of Gondor mark the landscape, some ruins and some still inhabited. The White Mountains are also the location of the beacons of Gondor.
In LOTRO, this range is not a separate area such as the Misty Mountains, but the White Mountains are an important part of the landscape between Rohan and Gondor. The foothills of the northern side of the range can be accessed in West Rohan. Also, multiple iconic locations such as the Dunharrow field and the valley of Helm's Deep are open for exploration and questing. On the southern side, the White Mountains enfold the Blackroot Vale, featuring iconic locations such as the Stone of Erech, all the way down to the coast of Belfalas and the city of Dol Amroth. When traversing from West Rohan to Western Gondor, the White Mountains can be passed through the Paths of the Dead which lie underneath.
The White Mountains were presumably made by the Vala Aulë when he helped in the construction of Arda. It is also possible that the were created by Melkor, and served the same goal as the Misty Mountains, which was to stop the Valar from riding around freely in the lands of Middle-Earth.
Geography
The White Mountains are characterised by their high, perpetually snow-capped peaks. A few of these peaks, from east to west:
Mindolluin is the easternmost mountain of the range. Under it's shadow, on the hill of Amon Tirith, the city of Minas Tirith is found.
The Starkhorn was one of the largest of the White Mountains, and from its base flows the River Snowbourn. This river cut the Harrowdale out of the White Mountains.
The Dwimorberg, or the Haunted Mountain, is the mountain that looms over the fields of Dunharrow above the Harrowdale, above the Dimholt. It is home to the Paths of the Dead.
The Irensaga was, together with the Starkhorn and the Dwimorberg, the third high mountain to surround the Harrowdale.
The Thrihyrne are the three peaks marking the north-western end of the White Mountains. They are at the western side of the valley of Helm's Deep.
Several rivers originate in the White Mountains. These rivers are:
On the north side:
The River Adorn which, together with the River Isen, formed a triangle which marked the westernmost boundary of Rohan. This river flows west to the great sea.
The Deeping-stream which flows in the valley of Helm's Deep.
In the second age, Wild men inhabited the valleys of the mountains. They had been servants of Sauron but swore allegiance to Isildur. After failing to turn up, Isildur cursed them, and, known as the Oathbreakers, they haunt the Paths of the Dead ever since. They are now known as the Men under the Mountain. On the northern end, their home can be accessed via the Dimholt. On the southern end, the Paths of the Dead end up near the Stone of Erech.
Gondorians
After arriving from Numenor and establishing the kingdoms of Gondor and Arnor, the entire mountain range fell under Gondorian reign.
Beset by orcs at the Field of Celebrant but saved by Eorl and his Rohirrim, the Gondorians granted the fields of Calenardhon to their saviours, who settled there and named it Rohan. The Gondorians still ruled the southern valleys of the mountain. Many local lords are loyal fiefs of Gondor.
Rohirrim
After the Battle at the Field of Celebrant, the Rohirrim settled in their new kingdom of Rohan. Their rule was challenged by the Dunlending who claimed the land was theirs, which resulted in many battles and tensions between their peoples. The Rohirrim established their capital Edoras on a foothill of the White Mountains, and their stronghold of Helm's Deep in a valley at the north-western end of the mountain range.
The Drúedain, a mysterious group of small people, lived in the mountains. It is said they had a large colony on the southwestern range, near Andrast. These peoples made the Púkel-men at the stairs of Dunharrow. Later, they resettled in a forest near Minas Tirith, along the northern slopes of the White Mountains.
Dwarves
Dwarves of the White Mountains
In-game description
You are from the south-western halls of Ered Nimrais, the White Mountains in the south bordering the lands of Andrast. Though your kingdom lies far from the central mountains where Men once dwelt, the rumour of the Oathbreakers has given your realm an ill name.
Fúni Gemcutter
During Volume III book 2, the player encounters the Dwarf Fúni Gemcutter, who mentions his home city Zigil-jâbal in the White Mountains.
Thrain
During Volume III book 2 and book 3, the player will encounter an old Dwarf, Nar, who has lived in the White Mountains before coming to Zudrugund in Enedwaith. He travelled with the company of Thror and Thráin after they abandoned the Lonely Mountain. Conversations with Nar as well as some of the books in the library of Zudrugund hint that two dwarven cities, Zigil-jâbal and Kechel, exist somewhere in the White Mountains. During a quest in the Gap of Rohan the dwarf Ondor also mentions the city of Zigil-jâbal, but neither can be visited in the game yet. [1]
Dwarven settlements in the Fourth Age
During the Battle of Helm's Deep, Gimli the Dwarf was awe-struck by the riches of the Glittering Caves (Aglarond). It is said that after the events of the battle against Sauron, in the early Fourth Age, Gimli will lead a colony of Dwarves and settle there.
Orcs
Orcs have lived in the White Mountains for a long period, troubling Rohirrim and Gondorians
Warning Beacons of Gondor
The northern line of the warning beacons of Gondor
Lighting the Northern Beacons in the LOTR Movie (You Tube) -- which, while impressive cinematography, represents yet another place where Director Peter Jackson took significant artistic liberties with Tolkien's narrative. These northern beacons are never lit in Tolkien's Trilogy, nor does a beacon exist in Minas Tirith (Mount Mindolluin).
In the Trilogy, the call for aid from Gondor to Rohan is described as the delivery of the Red-Arrow to Théoden in Dunharrow where the Rohirrim were already mustered. The Trilogy does mention the southern beacons being lit to Belfalas. The delivery of this War-arrow signaled to Aragorn it was time to leave on his errand while Théoden King led the Rohirrim to the aid of Minas Tirith.
The Southern Beacons follow the coast of Gondor from Lond Cirion to Minas Tirith. From west to east there are:
The Beacon of Lond Cirion - This beacon is located to the south of Lond Cirion and currently is the most western placed beacon. [71.3S, 89.0W]
The Beacon of Barad Faen - This beacon is located to the south of Barad Faen and stands out because of the fact it is not located on a naturul height, but is a tower. [68.0S, 81.6W]
The Beacon of Tadrent - This beacon is located to the south-east of Tadrent and is called Nendath. [75.2S, 61.5W]
The Beacon of Bar Elir - This beacon is not located close to a settlement except for some farms. It's name is Maegond. [72.8S, 58.4W]
The Beacon of Calembel - This beacon is located far to the south of Calembel and has been run over by the enemy and now is called the Fallen Beacon. [71.4S, 54.5W]
The Beacon of Arnach - This beacon is located to the west of Arnach and is the most eastern placed beacon of the Southern Beacons. It's name is Minlos. [76.8S, 26.0W]
The Northern Beacons follow the Anduin from Beaconwatch in Rohan to Minas Tirith. From west to east there are:
The Beacon of Elendil - This beacon is the western most placed one of the northern beacons and has Beaconwatch to the west. The Tomb of Elendil is near the summit and it has the name Halifirien. [46.2S, 45.5W]
The Beacon of Calenhad - This beacon is located to the south-west of the city of Calenhad and has the same name. [44.96S, 41.8W]