It does not appear to be trapped
Raven’s GateThis medium sized city is ruled by
HistoryRaven’s Gate was built as a staging ground for human armies during the siege of Bahamut’s Port, the last city to fall in the War of the Worms. For a few decades after the war the town served as a prison for the few survivors that were captured and not executed as well as a fortress overlooking the ruined city marking the humans dominance over the dragonborn.
During the time of the Bael Turath empire the city acted as a port for the navy. As time continued the non-military industries in the town developed. There were small deposits of silver found in the cliffs the upper city was built on and commercial fisherman would use the town as a base of operations for their sea bound journeys.