The Uruk Highlands is a sub-biome of Rohan. It is dominated by Isengard's Uruks and Wargs, who spawn at day and night regardless. No Rohirrim spawn here but invasions are extremely common. The Uruk Highlands are (somewhat) fertile lands, but desolate all the same. The area is reminiscent of Rohan, but many trees are dead or charred. Moreover, the landscape is scarred with numerous patches of blasted land and large boulders of waste blocks.
These features contain remnants of dead bodies and soil, and the vile touch of Isengard makes them randomly catch fire and burn infinitely. The land has also been stripped of any significant game to hunt, except for rabbits.
Hills - A hilly landscape with a higher average elevation.
Forested Hills - A landscape with forest covered hills.
Dead Oak Forest - Lands covered in forests whose glory is passing away. The forest density is comparable to the light forest variant, but there are many stems of dead, leafless trees. This variant is very helpful for acquiring large quantities of wood, as the dead trees provide a lot of easy accessible lumber.
Rohan Barrow - A barrow where old kings were buried. Loot inside the chest underneath the slab includes Silver Coins, Rohirric Equipment, and more, but beware, for a Rohan Barrow Wraith will spawn upon opening the chest and will fight to protect its contents.
Uruk Berserker - Uruk-hai that are larger, stronger, and harder to kill than their normal counterparts. They wield Uruk Berserker Scimitars, which are deadlier than their standard counterparts
Uruk Sapper - Uruk armed with deadly Orc Bombs, which were invented by Saruman. After the bomb is used, they attack with a scimitar.
Uruk Warg (can be ridden) - Evil wolves allied with the Uruks. They can be ridden by Uruks, attack on their own, or carry bombs (the latter is only true if a player hired the Wargs, or during an invasion).
Uruk Chieftain - Traders and leaders of the fearsome Uruk-hai from whom you can hire all of the above.
Uruk Trader - Traders who spawn in Uruk Camps and sell you items for silver coins.
Isengard Snaga - Orcs allied with Isengard. They are weaker than the Uruks, but still dangerous in large numbers. They can ride Wargs, too.
The Uruk Highlands feature the standard ore distribution, but unlike other biomes they also feature Rohan Rock below the surface. This rock is essential for the crafting of Rohirric building materials, and can be found in a thin layer beneath the dirt surface of the biome, in patches underground, and in boulders on the surface.
The Uruk Highlands are much like Rohan, except for the absence of wide plains and significant rivers, and a stronger presence of rolling hills. Oak trees dominate the vegetation, but many of them are dead or charred. Part of the fertile soil has been corrupted and turned into Blasted Land.
A ruined Rohan watchtower proves the Rohirrim have lost control of these lands.
Isengard camps and warg pits show who rules here.
Boulders of death and skulls scattered about, marking ... what?