The Terrace of the Makers is located in the northcentral area of the Storm Peaks. The Plain of Echoes is to its east while the Valley of Ancient Winters is to its south.
The Hall of the Shaper is situated on the eastern side of the mountain on the terrace and guarded by elite Iron Sentinels.
Iron dwarves are attacking the Earthen Warders who are guarding the entirety of the terrace.
Halefnir the Windborn <Servant of Loken> is situated on the stairs in the center of the terrace heading down to the north toward Duronn the Runewrought <Servant of Loken> who is at the northern edge of the mainland south of Ulduar.
The Inventor's Library is located to the west of Duronn, its entrance on the northern face of the cliff above a field of mechagnomes astride mechanostriders who are working with Databanks.
Further to the west is Mimir's Workshop which is filled with friendly (But seemingly dead) mechagnome attendants and Attendant Tock.
Atop the terrace are the temples called Temple of Invention, the Temple of Order, and the Temple of Winter. They are located in the northwest, northeast, and south respectively.