 The study reports a multi-year Marsh die-back event in the North in Le Guinier Bay, NIWB, Estuary, South Carolina, SC, identified using satellite time series from 1998 to 2005, which aligns with reported die-back events in other states. The study provides valuable information on Marsh healthiness and environmental resilience on SC coasts. This article was authored by Hiroshien Li, Suaixian Wang, Jean T. Ellis, and others.