In this study, we document changes in the shoreline of the Sundarbans using remotely sensed satellite data. We identify regions of and quantify the extent of erosion and sedimentation in the region and assess land use and land use patterns over a 14 year period from 2000 to 2014. The Sundarbans forest contains the largest single block of tidal halophytic mangrove forest in the world. It is a fragile coastal ecosystem that is affected by factors such as freshwater influx, salinity changes, global climate changes and sea level fluctuations, amongst others caused by natural and/or anthropogenic forcings. Due to these factors, mangrove forests such as the Sundarbans often are subjected to large degree of sedimentation (accretion) and erosion leading to the changes in the shorelines (Rahman, 2010). In this study, we quantify the extent of sedimentation and erosion in order to assess changes in the shoreline of the Sundarbans. Our study focuses on two regions; one in the Bangladesh Sundarbans and the other in the Indian Sundarbans