What type of lighthouse once stood in the Mississippi Sound north of The Pass?
a screw-pile lighthouse
Title: St. Joseph Island Light
Passage: The St. Joseph Island Light was a lighthouse which stood at the entrance to Lake Borgne on the north side of Mississippi Sound.  It was replaced by the Lake Borgne Light to the west as the island on which it stood was eroded, and was destroyed by a hurricane in 1893.  An unmanned light was eventually erected on the ruins along with a USGS water monitoring station.
Title: Pass Christian, Mississippi
Passage: Pass Christian ( ), nicknamed The Pass, is a city in Harrison County, Mississippi, United States.  It is part of the Gulfport–Biloxi Metropolitan Statistical Area.  The population was 4,613 at the 2010 census.
Title: Merrill Shell Bank Light
Passage: The Merrill Shell Bank Light was a screw-pile lighthouse which once stood on its eponymous shoal in the Mississippi Sound, west of Cat Island and south of Pass Christian, Mississippi.  It was replaced by a skeleton tower on the same foundation.
Merrill Shell Bank Light Pass Christian, Mississippi