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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Tides: HW Full and Change - Rise and Fall
From: Bill Lionheart
Date: 2025 May 26, 08:28 -0700
From: Bill Lionheart
Date: 2025 May 26, 08:28 -0700
Is this from the Admiralty Hydrographic Office or from the US Coastal Survey or a different hydrographic office?
Bill L
A bit off topic, I know, but there are several nautical historians here who may be able to help. I'm trying to derive the value of Mean High Water Springs (MHWS) from an 1845 Survey.
