What is gpo first sea map?

GPO First Sea Map or the General Post Office First Sea Map is a historic and one of the earliest maps of the British coastlines. It was produced by the General Post Office in London in 1799 as a navigational chart to assist the UK's Royal Navy in their sea voyages. The map includes detailed pictorial sketches of coastal landmarks, ports, and lighthouses, providing sailors with vital information on safe navigation and anchorage points.

The GPO First Sea Map is also known as the "Admiralty Chart of the British Channel," covering the coastline of the English Channel, extending from the Scilly Isles in southwest England to Calais in France. The map was created by combining surveys and data collected by Royal Navy hydrographers, ensuring it was accurate and reliable.

Today, the GPO First Sea Map is considered a rare and valuable antique map, sought after by collectors and historians alike. It provides significant insight into the early development of the UK's maritime history, navigation, and cartography, making it a fascinating piece of cultural heritage.