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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

5150 thumbnail picture
Shoran Launch No. 4 between Unga and Wosnesenski Island
Alaska, Aleutian Islands 1954
5151 thumbnail picture
Hydrographic launch off SURVEYOR near Kalgin Island, Cook Inlet
Alaska, Cook Inlet, Kalgin Island 1967
5152 thumbnail picture
Interior of hydrographic survey launch off SURVEYOR
Alaska, Cook Inlet, Kalgin Island 1967
5153 thumbnail picture
Coxswain Tosh Kaiura checking compass while getting on line. SURVEYOR launch at Pago Pago
American Samoa 1971
5154 thumbnail picture
Plastic Pig on line. WHITING launch in Pillsbury Sound
Pillsbury Sound, U.S. Virgin Islands 1975
5155 thumbnail picture
Jensen Launch on line. Launch off of PEIRCE
Penobscot Bay, Maine 1985
5156 thumbnail picture
Jensen Launch on line. Launch off of PEIRCE
U. S. Virgin Islands, Charlotte Amalie 1985
5157 thumbnail picture
Jensen Launch on line. Launch off of PEIRCE
Penobscot Bay, Maine 1985
5158 thumbnail picture
Jensen Launch on line dwarfed by nuclear power plant cooling tower. Launch off of PEIRCE
Delaware Bay 1985
5159 thumbnail picture
Skiff outfitted for hydrography - casting the lead. Skiff off of HYDROGRAPHER
Eastern Gulf of Mexico 1925
5160 thumbnail picture
Boston Whaler outfitted for hydrography. Boat off of PEIRCE
Penobscot Bay, Maine 1985
5161 thumbnail picture
Small boat hydro - Cook Inlet area. Boat off of PATHFINDER
Lower Cook Inlet, Alaska 1970
5162 thumbnail picture
Low tide - rock shows where vessel struck and then sank. Vessel captain claimed to be in mid-channel far from any hazards. Paint, metal fragments, and rivets proved differently
Alaska
5163 thumbnail picture
Egyptian tomb painting from 1450 B.C. showing officer with sounding pole. Officer is telling crew to come ahead slow. Engineers with cat-o'-nine-tails assuring proper response from engines
Egypt 1450 B.C.
5164 thumbnail picture
St. Brendan striking out into the Atlantic - about 6th Century A.D. St. Brendan checking depths with his sounding pole
Ireland 500 A.D.
5165 thumbnail picture
Frontispiece from the Hastings Rutter - 1450 A.D. early English pilot guide. Possibly first picture of leadline sounding
Thames River, England 1450 A.D.
5166 thumbnail picture
Sailor sounding from merchantman - Nineteenth Century. Sketch by Gordon Grant
5167 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5168 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5169 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5170 thumbnail picture
Taking the reading when the line is vertical
5171 thumbnail picture
Boatswain Jahnke casting the lead. Launch off the SURVEYOR
5172 thumbnail picture
Casting the lead - Hydro Manual 1931
5173 thumbnail picture
Casting the lead - Hydro Manual 1931
5174 thumbnail picture
Leadline is vertical for reading. Working off the WESTDAHL
Southeast Alaska 1936
5175 thumbnail picture
Tossing the leadline. Working off the WESTDAHL. Note splash of lead out ahead of ship
Southeast Alaska 1936
5176 thumbnail picture
Sounding in Salton Sea for seaplane landing site. Part of war project to establish seaplane landing sites. Sites used for ferrying seaplanes across United States
Salton Sea, California 1942
5177 thumbnail picture
Trolley sounding arrangement. Off of ISIS
Virginia, Chesapeake Bay area 1915
5178 thumbnail picture
Trolley and line ready for next sounding. Off of ISIS
United States East Coast 1916
5179 thumbnail picture
Trolley rig - Hauling slack from sounding line prior to sounding. Off of ISIS
United States East Coast 1916
5180 thumbnail picture
Trolley rig - paying out leadline by hand as trolley carriage runs down cable. Off of ISIS
United States East Coast 1916
5181 thumbnail picture
Getting upright cast as sounding stand passes position of lead. Off of ISIS
United States East Coast 1916
5182 thumbnail picture
Hauling in sounding line of trolley rig using hand crank on boat deck. Off of ISIS
United States East Coast 1916
5183 thumbnail picture
Arrangement of sounding machines on PATHFINDER. Off of PATHFINDER
Philippines 1921
5184 thumbnail picture
Arrangement of sounding machines on PATHFINDER. Off of PATHFINDER
Philippines 1921
5185 thumbnail picture
Arrangement of sounding machine on PIONEER. Off of PIONEER
Southwestern Alaska Peninsula 1924
5186 thumbnail picture
Coast and Geodetic Survey sounding tube equipment. Hydrographic Manual 1931, Figure 17, p. 53
1931
5187 thumbnail picture
Shelter and equipment used in reading sounding tubes. Off of PIONEER
Southwestern Alaska Peninsula 1924
5188 thumbnail picture
Robert Williams with first Fessenden oscillator on the tug Susie D. First successful test of sonic system. Looking for icebergs but also found bottom
North Atlantic 1914
5189 thumbnail picture
Sonic sounding apparatus on the GUIDE. On the ship GUIDE
5190 thumbnail picture
Title page to manual - "The Submarine Fathometer". Fathometer invented by Herbert Grove Dorsey of the Sub Signal Corporation.
5191 thumbnail picture
Fathometer Filter. From the manual - "The Submarine Fathometer"
5192 thumbnail picture
Fathometer Oscillator. From the manual - "The Submarine Fathometer"
5193 thumbnail picture
Internal View of Fathometer. From the manual - "The Submarine Fathometer"
5194 thumbnail picture
Herbert Grove Dorsey - chief physicist of the Coast and Geodetic Survey. With Dorsey Fathometer - Dorsey came to work with C&GS in 1926
1930?
5195 thumbnail picture
Operator using Dorsey Fathometer with flashing light method. Merchant Marine Bulletin No. 9, May 1931
5196 thumbnail picture
Leo Otis Colbert with Dorsey Fathometer No. 3. The first effective shallow and deep water echosounder. Operator watched flashing light. On the ship OCEANOGRAPHER
United States East Coast
5197 thumbnail picture
808 fathometer transducer. Hydrographic Manual 1942. Called first portable sonic sounding device. First acoustic sounding device used on C&GS sounding boats for shallow water. First use of shallow water fathometer continuous records by C&GS
5198 thumbnail picture
Prototype "portable" depth recorder used as part of 808 fathometer system. Bulletin 13 of the Association of Field Engineers, 1939, p. 102
5199 thumbnail picture
"Echometre" record from S. S. De Grasse. Crossing over canyon near Georges Bank. Bulletin 4 of the Association of Field Engineers, Dec. 1931, p. 83

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Last Updated:
July 7, 2015