HMS RACEHORSE in pack ice - Captain Constantine Phipps.Sounded in Norwegian Sea in 683 fathoms.Brought up blue mud.First modern successful sounding on continental slope area.Not sounding in image
4/3/2019 10:36:25 AM
Date: September 4, 1773
Credit: NOAA Central Library
Location: Norwegian Sea Photo
Subject: Charting
Subject: Soundings
Subject: Bathymetry
Subject: Mechanical
Subject: