LEADER 01331nes 2200373Ia 450 001 9910701383403321 005 20120106144835.0 035 $a(CKB)5470000002417230 035 $a(OCoLC)771073372 035 $a(EXLCZ)995470000002417230 100 $a20120106b19741984 ca 101 0 $aeng 120 $ab|||||||||||| 121 $a||||||||| 124 $bd 135 $aurcn||||||||| 181 $ccrd$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aUnited States--east coast, Maryland and Virginia, Potomac River, Piney Point to lower Cedar Point$b[electronic resource] /$fNational Ocean Survey 210 $aWashington, D.C. $cU.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey 215 $aonline resource (maps) $ccolor 300 $aDepths shown by isolines and soundings. 300 $aRelief shown by contours. 300 $a"Soundings in feet." 300 $aIncludes tidal information. 517 3 $aPotomac River, Piney Point to lower Cedar Point 607 $aPotomac River$xNavigation 801 0$bGPO 801 1$bGPO 906 $aDOCUMENT 912 $a9910701383403321 996 $aUnited States--east coast, Maryland and Virginia, Potomac River, Piney Point to lower Cedar Point$93201379 997 $aUNINA