Some may not know of the legendary Ravenholdt Manor, which is owned by the group called Ravenholdt.
Ravenholdt is a guild of thieves and assassins which welcomes only those of extraordinary prowess into its fold. They are diametrically opposed to the Syndicate, and are a rogue-only faction as all quests are rogue-only quests. The exception is the quest Junkboxes Needed, which is available to non-rogues, but they would require the help of a rogue to get the items for the quest. Their headquarters, Ravenholdt Manor, is located in Alterac Mountains, but to get there you have to come from the northeast corner of Hillsbrad Foothills. - WoWwiki
Go to Southshore/Tarren Mill, and then cross the river to the east. Once you're on the east bank, go north until you hit the mountain/hills. Then go east for a bit, and keep looking on your map for a dirt path going into a cave (you should be between the river and Durnholde Keep if you have the right path). Follow the path and through the cave, and you will be at Ravenholdt Manor. The excellent thing about this place is that few know about it, so it's great for guild parties and for RPing.
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