Maps and GIS

We use Geographic Information Systems (GIS) for digital mapping, data storage, and analysis. Think of GIS as tables of data linked to their geographic locations (known as spatial data). Spatial data can be displayed and layered with additional data (such as shorelines and navigational charts) to create visual and informative maps. Patterns can be explored using analytical tools and geostatistics within GIS.


PBNERR graphic produced from 2014 NOAA imagery

Historical Maps

1958 map from “A Study of the Preoperational Marine Environment in the Vicinity of the Texas Company Refinery, Puget Sound Works, Anacortes, Washington” by Sylvester and Clogston, 1958


For questions on Padilla Bay maps and GIS, please contact Suzanne Shull at (360) 428-1058 or