Water Resources of the United States
Many USGS reports on water resources are now available in electronic format.
Visit the Publications Warehouseto search for reports by subject, author, date, USGS series or publication series number. Many of these reports will be available in .DJVU format. There is also information on obtaining printed copies of reports.
Visit the Water-Resources Reports page to browse for selected USGS Online Water-Resources reports. Most of these reports will be available in Adobe PDF or HTML format.