Historic Union River Watercourse through Ellsworth, Maine Identifier: 2080 Type: Map Title: Historic Union River Watercourse through Ellsworth, Maine Subject: Places Description: A map comparing the original watercourse as shown on a 1902 plan, overlaid with the modern GIS layer of the river. Collection: Geographic Information Systems (GIS) Creator: COA students Rights: In Copyright - Educational Use Permitted Citation COA students, “Historic Union River Watercourse through Ellsworth, Maine,” College of the Atlantic, accessed April 4, 2025, https://coa.digitalarchive.us/items/show/1108.Item 2080 Save this item as a PDF file