Recent fieldwork map April-May 2018
![Map of North America with dots along coasts, on islands, and in oceans to show where fieldwork has been conducted.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Recent-Fieldwork-map-April-2018.jpg?itok=ZyRjYxMm)
Detailed Description
Approximate locations of some recent USGS coastal and offshore fieldwork. Dark blue areas outline the US Exclusive Economic Zone; purple areas show US Great Lakes waters.
Sources/Usage
Public Domain.