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Recent fieldwork map June 2018

By Coastal and Marine Hazards and Resources Program
Illustration of map of the United States has dots on it to show where recent fieldwork was completed.
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Detailed Description

Approximate locations of some recent USGS coastal and offshore fieldwork. Dark blue areas outline the U.S. Exclusive Economic Zone; purple areas show U.S. Great Lakes waters. Map base: https://coastalmap.marine.usgs.gov.

Sources/Usage

Public Domain.