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Approximate locations of recent USGS fieldwork, April 2017

By Coastal and Marine Hazards and Resources Program 2017 (approx.)
Graphic map of US and Alaska, plus Pacific Islands and part of S. America. Land=green, water=blue: red dots=fieldwork locations
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Detailed Description

Approximate locations of some recent USGS coastal and offshore fieldwork in April of 2017. Dark blue areas outline the US Exclusive Economic Zone; purple areas show US Great Lakes waters. Map base: https://coastalmap.marine.usgs.gov.

Sources/Usage

Public Domain.