01426oem 2200421Ia 450 991069645390332120081217094012.0(CKB)5470000002378302(OCoLC)213081399(EXLCZ)99547000000237830220080307d1986 ca engb||||||||||||||aa|||||durcn|||||||||crdrdacontentcrdamediacrrdacarrierBathymetric map[electronic resource] Gulf of Alaska, Shumagin Bank /National Ocean ServiceWashington, D.C. :U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service,1986.1 map digital, PDF fileDepths shown by gradient tints, isolines and soundings.Title from title screen (viewed on Mar. 7, 2008).Includes table of depth gradients, hydrographic survey information, NOS hydrographic survey index and index to adjoining sheets."NOS NN 4-4."Bathymetric map Aleutian TrenchMapsShumagin BankMapsBathymetric maps.lcgftMaps.lcgftGPOGPOGPOBOOK9910696453903321Bathymetric map3434997UNINA