Nautical Chart / Marine Chart

BA 4806

San Francisco And Vancouver Island To Mendocino Fracture Zone
BA 4806 - San Francisco And Vancouver Island To Mendocino Fracture Zone

Please note that all charts are folded in half for storage and handling. This is the marine industries standard.
If you require an unfolded copy (ie: flat for framing), please make note of this in the comments at checkout.


This official Nautical Chart is produced by the United Kingdom Hydrographic Office (UKHO), and is corrected weekly to UKHO 'Notice to Marines'. This ensures it remains compliant with Safety of Navigation requirements. This marine chart, or 'sea map', is primarily produced to support the safe navigation of commerical shipping throughout the world.

Nautical charts depict the seabed, or bathymetry, using a variety of colours to shade the depth regions. Darker blues indicate shallower water, while light blues and white indicate deeper water. A chart will also show continuous contour lines (at varying intervals dependingo the scale of the chart), 'spot depths' across the whole area, as well as different symbols indicating wrecks, shallow rocks and dangers, as well as details on lights, light houses, tides and currents.

For extensive detail on the symbology of nautical charts, the Symbols and Abbreviations used on Admiralty Charts is the definative reference.

Locations within this Map

British Columbia Colombie britannique New Caledonia Canada Washington WA Wash. United States of America California CA Calif. Oregon OR Ore. Nitinat Noyo Oglala Parks Pathfinder Peters Pioneer President Jackson Raff Raitt Revere Richards Schaefer Scott Sedna Seminole Shalovich Shandabylov Shor Soquel Spilhaus Springfield Srivastava Stanley Steel Vendor Stirni Studds Sur Taney Terry Thompson Trinidad Tucker Union Vacquier Vance Vizcaino Wachusett Warwick Yukhov Zhukov Arena Astoria Bodega Boutelle Brown Bear Campbell Cascadia Chelan Cobb Davidson Dehlinger Delgada Dellwood Diebold Eel Eickelberg Emilia Endeavour Explorer Foster Gorda Gordon Guide Heceta Heck Horizon Iizuka Iwabuchi Jones Juan de Fuca Kagami Kermit Roosevelt Krauss Krummel Laperouse Macnab McKernan McManus Menard Mendocino Monterey Moore Morton Moser Mukluk Nichols Nierenberg