Dahl, T. 1990. Wetlands Losses in the United States, 1780s to 1980s. United States Fish and Wildlife Service, Washington, DC.

Assessment, wetlands

https://www.fws.gov/wetlands/Documents/Wetlands-Losses-in-the-United-States-1780s-to-1980s.pdf

This report describes the loss in wetland acreage in the continental United States over a 200-year time span.