British Isles

Author: Great Britain. Hydrographic Dept.
Publisher: United States. Defense Mapping Agency. Hydrographic/Topographic Center
Date: 1985
Location: Atlantic Coast (British Isles), British Isles, Great Britain, Ireland, North Atlantic Ocean

Dimensions: 73.0 x 59.0 cm.
Scale: 1:500,000 at lat. 60p00¹
Call Number: BPL online resource


This navigational chart is the modern version of a late Middle Ages portolan chart, giving directional headings and detailed depth soundings to aid in seafaring navigation. This modern chart serves as a reminder that England is an island nation off the coast of Europe and that seafaring was an important activity in its history, especially since the late 16th century. Through its maritime and trading activities, England built a colonial empire around the world that included portions of North America and the Caribbean. As a modern navigational aid, this chart focuses on depth soundings in the coastal areas and surrounding seas, while the interior areas of the British Isles are left relatively blank, in stark contrast to modern tourist maps of Britain . Depths shown by isolines and soundings. Relief shown by spot heights. Depths in meters. Part of OMEGA series.

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