High Quality Content by WIKIPEDIA articles! USS St. Regis River (LSM(R)-529) was a LSM(R)-501 class landing ship. Originally the ship only had the designation LSMR-529. She was laid down in June 1945 by the Brown Shipbuilding Co. at Houston, Texas, as LSMR-529, a rocket-armed medium landing ship; launched in July 1945; and commissioned on 7 September 1945.