Reply to post: Re: Its alway been this way!

Big data at sea: How the Royal Navy charts the world's oceans

SkippyBing

Re: Its alway been this way!

For a long time the deepest marking on the admiralty charts was something like 400 fathoms because that was the longest piece of rope they had for the depth measurements. Although to be honest for most use cases that's all the information you need.

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