Click the image above to try out GeoGULF, a new portal for exploring historical maps of the Gulf of St. Lawrence. The core maps displayed in this early version are the Admiralty Charts produced by Captain Henry W. Bayfield and his staff during the St. Lawrence Survey (1827-1856).
The GeoGULF viewer can be accessed via the Gulf Ecologies project page, or with the full url: https://experience.arcgis.com/experience/0474acf8e73947468593263b68a82c53.