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
Image ID: theb3769, Voyage To Inner Space - Exploring the Seas With NOAA Collect Location: Norwegian Sea Photo Date: September 4, 1773 Credit: NOAA Central Library
