I just hit Northrend so I am looking for a similar place. Once my gear is a little better I will hit an instance. As it is I entered the North at level 68 so the gear is lacking for sure.

One thing I did find accidentally was a pack of those Shovelhead boars that had a fairly short respawn time. A group of 5-6 would spawn I would consecrate AOE them down for about 550xp each and as soon as I killed the first pack the second would insta' spawn. After that a minute or two later it would start over. I might go back to that location or one like it to level my skinning.