Moria is the biggest area in the game - big enough where each separate area within it has its own map!
Gimli can be a playable hero on the map Mines of Moria
Click Start-All Programs-Ea Games-Battle for middle-earth-Worldbuilder Its confusing, but you can find online help
You first have to unlock waypoints while exploring the map. After that, you can select them on the map and travel back to them whenever you want (outside of a level).
According to the map scale provided in The Lord of the Rings, about 285 miles. You may want to double check this yourself with a ruler and map.
Horses can be purchased from an NPC at Hengstacer Farm, Bree-land. In Lord of the Rings Online (LOTRO), there is an area called Bree-land, in which there is the town of Bree. On your map, in the Bree-land area, there is a stable (that icon of a horse head) named Hengstacer Farms (or something very close to that). If you hover your mouse over [that icon of a horse head] it'll come up with the name of that stable. Hope this helps, ~Darkeflare
yes you can, there is a world builder option but is not a ea supported program.
There are no "people" to unlock in Lord of the Rings: War in the North: The only three playable characters are available from the start of the game and can be changed after any completed map or at each point where the game is turned back on after being closed.
in the menu for making a skirmish, one of the tabs can be changed to custom maps. change it to custom maps.
the world map
The most western sea is the Sundering Seas (aka Belegaer or The Great Sea) that separated Middle-earth from Valinor.
overgrown
It depends if Gollum is included in option. If you want him, before starting the game check "Ring Heroes ALLOWED". Then Gollum will be somewhere on map. He is usually hiding and sneaking around. If you meant Gollum as a Hero, you need special map or mod.