8-Digit USGS US Water-Resources Cataloging Units (WRCU) Database -- Virginia

02060009 Pocomoke 02060010 Chincoteague 02070001 South Branch Potomac 02070004 Conococheague-Opequon 02070005 South Fork Shenandoah 02070006 North Fork Shenandoah 02070007 Shenandoah 02070008 Middle Potomac-Catoctin 02070010 Middle Potomac-Anacostia-Occoquan 02070011 Lower Potomac 02080101 Lower Chesapeake Bay 02080102 Great Wicomico-Piankatank 02080103 Rapidan-Upper Rappahannock 02080104 Lower Rappahannock 02080105 Mattaponi 02080106 Pamunkey 02080107 York 02080108 Lynnhaven-Poquoson 02080109 Western Lower Delmarva 02080110 Eastern Lower Delmarva 02080201 Upper James 02080202 Maury 02080203 Middle James-Buffalo 02080204 Rivanna 02080205 Middle James-Willis 02080206 Lower James 02080207 Appomattox 02080208 Hampton Roads 03010101 Upper Roanoke 03010102 Middle Roanoke 03010103 Upper Dan 03010104 Lower Dan 03010105 Banister 03010106 Roanoke Rapids 03010201 Nottoway 03010202 Blackwater 03010203 Chowan 03010204 Meherrin 03010205 Albemarle 03040101 Upper Yadkin 05050001 Upper New 05050002 Middle New 05070201 Tug 05070202 Upper Levisa 06010101 North Fork Holston 06010102 South Fork Holston 06010205 Upper Clinch 06010206 Powell   Full 8-digit WRCU databases for the rest of 12 Water-resources regions are downloadable from the USGS Website     Download PDF Reader     Instruction for copying computer models bigger than 1.44 MB to multiple floppy disks