The second of the Seven Gates that barred the Orfalch Echor, the ravine that led through the Encircling Mountains to the Hidden City of Gondolin. The Second Gate consisted of a single dark and polished block of stone set in a stone wall that spanned the ravine. That block was set on a central pivot, and it opened by turning on this pivot to allow passage on either side. Behind the Second Gate was a courtyard guarded by many grey-clad Elves, and over the courtyard, in the wall that held the gate stood two towers, one to the north and one to the south.