The kobolds inhabiting the mine are needed for a few quests (as stated below). The mine is quite simple to maneuver through and the quests should be easy, as the kobolds are defensive and will not become hostile unless attacked. A path winds to the back of the mine and opens into a large room. A chest sometimes spawns here and usually has a few copper to help with finances and maybe a new weapon. It is worth taking a quick peek to see if it's there.This section concerns content exclusive to Cataclysm.
In The Cataclysm Expansion the Echo Ridge Mine is Closed off by a iron gate making it inaccessible. The mine is guarded by the rare spawned Kobold named Gug Fatcandle, other than the rare spawn, the Kobolds seem to have abandoned this area.