USCGC SUMAC (WLR 311)

USCGC SUMAC (WLR 311) is a United States Coast Guard inland river buoy tender, originally commissioned in 1944. Built during World War II, SUMAC has served primarily in maintaining navigational aids along major inland waterways, ensuring safe passage for commercial and military vessels. Over its decades of service, the cutter has supported a range of Coast Guard missions, including search and rescue, environmental protection, and law enforcement. The vessel exemplifies the crucial role of river tenders in sustaining America's maritime infrastructure and operational readiness.