“Public outreach initiatives such as the Cabox Geopark are essential in sharing geological information with interested members of the public, and the Bay of Islands area of western Newfoundland contains exceptional rocks which have aided in the development of geologic thought. Early reconnaissance and biostratigraphic studies noted the complexity in the area and initially described ophiolitic rocks as intrusive complexes. After the theory of plate tectonics was developed, researchers recognized the allochthonous nature of the ophiolite and many of the sedimentary rocks. Subsequent stratigraphic, sedimentological and structural studies yielded a modern understanding of the formation of the Appalachian Orogen. Multiple projects created a patchwork of geologic maps using different stratigraphic schemes, producing challenges for public outreach. In addition, new mapping supported by the Cabox Aspiring Geopark led to the separation of structures generated by three distinct orogenic episodes and the recognition of a tectonic window through sedimentary strata of the Laurentian shelf. To address these challenges, a compilation shapefile containing the geology of the region was updated using GIS (Geographic Information System) software. Boundary issues between different map sources were resolved using geological knowledge, GIS principles and project-specific GIS techniques. The resulting map presents a unified picture of the geology, suitable for use in outreach projects.”