This article is about the biome. For the faction, see here.

... but Dwarves dwelt, and still dwell, in the east side of the Blue Mountains, especially in those parts south of the Gulf of Lune, where they have mines that are still in use.

The Lord of the Rings, Appendix A

The once-great Blue Mountains (Ered Luin in Sindarin) are a mountain range far in the west, near the High Elven realm of Lindon. Besides the Iron Hills, it is one of the few remaining lands where dwarves live freely. The Mountains are made of Sarlluin, which has a light blue colour. As with many other mountain regions, the Blue Mountains are covered in snow. The snow starts at around layer 100 while the thick snow (snow blocks) starts around layer 110. Under layer 100 there is only the Sarlluin ground, while under level 90 grass can come through the sarlluin, creating small valleys in which trees and other plants can grow.

Along with the Iron Hills, this biome is one of the few biomes to contain Glowstone Ore. The Blue Mountains are one of Arda's original mountain ranges, along with the Red Mountains, the Harad Mountains, and the Yellow Mountains (the latter's remains are located on the Dark Land continent, which is not included in the mod), when the Valar created Arda in a symmetrical fashion. They were connected to the Iron Mountains and the Red Mountains, forming a great mountain range. They originally separated Eriador from Beleriand.

During the First Age, when the Valar fought Melkor, most of Beleriand was flooded (with the exception of Lindon). The Great Sea broke through the mountain range, separating them in two and creating the Gulf of Lune. This same war separated the once-continuous mountain ranges of Middle-Earth. The Blue Mountains are home to the Firebeard and Broadbeam dwarf tribes. Of old they built the great cities of Nogrod and Belegost. As such there are many structures of the Dwarves here. Belegost was known as the "Great Fortress" while Nogrod was famous for their great forges and smithies. Many great armors and weapons come from Nogrod, namely the Dragon Helm of Dor-Lomin and Narsil, both forged by Telchar. However, at the end of the First Age, after the War of Wrath, the glory of these two cities was destroyed as both cities fell into ruin and flooded along with the sinking of Beleriand. It is possible that both Belegost and Nogrod were rebuilt.

Upon entering the Blue Mountains, the player earns the achievement "Firebeards and Broadbeams"


Blue Mountains Foothills Edit

The Blue Mountains Foothills are one of the sub-biomes of the Blue Mountains. They are the foothills that surround the Blue Mountains biome. It is still a hilly region, but these hills can't be compared with the mountains themselves. Snow cannot be found in the foothills, but patches of Sarlluin spawn underground and occasional on the surface. Sometimes, Blue Dwarven structures still spawn in this region. The Blue Mountains Foothills also contains a forest biome variant.

Variants Edit

Blue Mountains Light Forest Edit

The Blue Mountains Light Forest has all of the features of the standard Blue Mountains biome. However, it contains more trees that are almost evenly spread apart. The trees in this biome are not very dense, so it is much easier to travel through than a normal forest.
Blue Mountains Forest

A forested valley of the Blue Mountains.

The following forest variants are known to occur throughout the Blue Mountains:

Structures Edit

Four Dwarven structures spawn in the Blue Mountains.

Mobs Edit

The Blue Mountains are home to the Dwarves of the Blue Mountains. Well watched by the dwarf armies, orcs only wander in the foothills, watching an occasion to attack.

  • Blue Mountains Dwarves - Dwarves that make their home in the the Blue Mountains. They can be married or single, adult or child, male or female.
  • Blue Mountains Dwarf Warrior - These Dwarves are warriors that fight with swords, axes, hammers, or other weapons.
  • Blue Mountains Dwarf axe-thrower - Dwarves equipped with infinite amounts of powerful throwing axes to use as ranged weapons.
  • Blue Mountains Dwarf Commander - NPCs who will sell you the forces of the Blue Mountains for a fee of silver coins. They spawn in blue dwarven strongholds.
  • Blue Mountains Miner - Miners in Dwarven Mines that will sell you ores and buy food and ale. They spawn underground in the Blue Mountains.
  • Blue Mountains Smith - Blacksmiths who will sell dwarven gear and buy materials. They spawn in Blue Dwarven Smithies.

Foothills only:

  • Gundabad Orc - The orcs from Misty Mountains, coveting dwarven halls and wealthy. They run in the foothills at night.
  • Gundabad Orc Archer - An orc of Gundabad equipped with a bow or a crossbow.
  • Gundabad Warg - Wargs allied to orcs of Gundabad who mount them sometimes.

Mining Edit

The Blue Mountains contain all the normal ores, but at and underneath the surface, miners will find Sarlluin stone, which can be made into pillars, bricks, pressure plates, and more. It is also required to make the Blue Mountains crafting table. Glowstone Ore can also be found here. Like the Iron Hills, mining is better here than in other biomes, as ores are more abundant.


The upper levels of the Blue Mountains are covered in snow and so no plants can grow there, as it is above the tree line, although there are some valleys between the peaks and sarlluin layers where some trees grow in dry, grassy areas. Some vanilla flowers also grow here, while blue orchids seem to dominate. Vegetation here is montane, with the presence of both conifers and birch trees.

The foothills have similar vegetation, with the exception that the trees can grow in larger groups, as they are not limited by the valley size and high cliffs. Pine, fir, and spruce trees are common in the forested parts of this biome, but birch also grows occasionally.

The One Wiki to Rule Them All has an article on:

The Blue Mountains

The Tolkien Gateway has an article on:

The Blue Mountains

Biomes of the Lord of the Rings Mod
List by Alphabet

AndrastAngleAngmarBarrow-downsBlackroot ValeBlue MountainsBree-landBrown Lands


ChetwoodColdfellsCorsair CoastsDagorladDaleDead MarshesDol GuldurDor-en-ErnilDorwinionDrúwaith IaurDunland


East BightEastern DesolationEmyn MuilEnedwaithEreborEregionEriadorEryn CaranEryn VornEttenmoorsFangornFar Harad (Bushland, Grasslands, Jungle, Mangrove, Swampland, Volcano) • Field of CelebrantForodwaithGladden FieldsGondorGreat DesertGulf of HaradGorgorothGrey MountainsHarad MountainsHarnedorHarondor


Iron HillsIslandIthilienKanuka ForestLamedonLebenninLindonLone-landsLong MarshesLossarnachLostladenLothlórien


MeneltarmaMidgewaterMinhiriathMirkwood (Northern) • Misty MountainsMordorMordor MountainsMorgulduinMorgul ValeMouths of AnduinMouths of EntwashNan CurunírNan UngolNear HaradNindalfNorthern ForestNorthlandsNúrnOld ForestOrocarniPelargirPelennor FieldsPertorogwaithPinnath Gelin


RhúdelRhûnRivendellRohanSea of NúrnenSouthron CoastsSwanfleetTaur-na-TorogrimThe SeaThe ShireTolfalasTrollshaws


UdûnUruk HighlandsUmbarUtumnoVales of AnduinWeather HillsWhite DownsWhite MountainsWilderlandWoodland Realm

List by Region

AngleAngmarBarrow-downsBlue MountainsBree-landChetwoodColdfellsDunlandEnedwaithEregionEriadorEryn VornEttenmoorsLindonLone-landsMidgewaterMinhiriathOld ForestRivendellSwanfleetThe ShireTrollshawsWeather HillsWhite Downs


Brown LandsDagorladDaleDead MarshesDol GuldurEast BightEmyn MuilEreborField of CelebrantGladden FieldsGrey MountainsIron HillsLong MarshesLothlórienMirkwood (Northern) • Misty MountainsVales of AnduinWilderlandWoodland Realm


AndrastBlackroot ValeDor-en-ErnilDrúwaith IaurFangornGondorHarondorIthilienLamedonLebenninLossarnachMouths of AnduinMouths of EntwashNan CurunírNindalfPelargirPelennor FieldsPinnath GelinRohanTolfalasWhite Mountains


Eastern DesolationGorgorothMordor (Biome)Mordor MountainsMorgulduinMorgul ValeNan UngolNúrnSea of NúrnenUdûn


Corsair CoastsFar Harad (Bushland, Grasslands, Jungle, Kanuka Forest, Mangrove, Swampland, Volcano) • Great DesertGulf of HaradHarad MountainsHarnedorLostladenNear HaradPertorogwaithSouthron CoastsTaur-na-TorogrimUmbar


DorwinionEryn CaranOrocarniRhúdelRhûn


ForodwaithNorthlandsNorthern ForestUtumno


IslandMeneltarmaThe Sea



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