EPA conducted a series of investigations at Pettaquamscutt Cove salt marsh at the Little Neck Cove during the summer of 2012. The purpose of these investigations was to learn more about Pettaquamscutt Cove salt marshes and identify any perceived changes in vegetation, ecology, and sustaining processes over time. Using historic air photos and US coast survey maps, historic vegetation changes at Pettaquamscutt Cove over the past 180+ years were identified. Marsh elevation and plant surveys were conducted and compared with other salt marshes in Rhode Island and neighboring states. Water levels within a salt marsh tidal channel at Pettaquamscutt Cove were measured and used to develop an elevation/inundation frequency diagram. By analyzing dated and undated salt marsh sediment cores, accumulation rates, soil composition, and historic nitrogen sources were also reported. These data are intended to provide information useful for ongoing restoration planning.