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

5550 thumbnail picture
Fathometer Filter. From the manual - "The Submarine Fathometer"
5551 thumbnail picture
Fathometer Oscillator. From the manual - "The Submarine Fathometer"
5552 thumbnail picture
Internal View of Fathometer. From the manual - "The Submarine Fathometer"
5553 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?
5554 thumbnail picture
Operator using Dorsey Fathometer with flashing light method. Merchant Marine Bulletin No. 9, May 1931
5555 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
5556 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
5557 thumbnail picture
Prototype "portable" depth recorder used as part of 808 fathometer system. Bulletin 13 of the Association of Field Engineers, 1939, p. 102
5558 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
5559 thumbnail picture
Early graphic record from Sub Signal system. Off S.S. Yarmouth between Boston and Yarmouth. Bulletin 6 of the Association of Field Engineers, Dec. 1932, p. 60.
5560 thumbnail picture
Various bottom configurations plus bar check record. Hydrographic Manual 1942
5561 thumbnail picture
Various bottom configurations. Hydrographic Manual 1942
5562 thumbnail picture
Ship on Nantucket Shoals that was subsequently blown up. Fathometer record of remains of ship
5563 thumbnail picture
Expanded view of fathometer record of remains of ship
5564 thumbnail picture
Outer Nushagak Bay sand waves. Observed on PATHFINDER
5565 thumbnail picture
Hydrothermal spring discharging fluid off Pagan Island. Observed on NOAA Ship TOWNSEND CROMWELL
Pagan Island, Marianas Islands 1980?
5566 thumbnail picture
Running up to bank and loosing trace - then heading back out into bay. Record from PEIRCE launch in Delaware Bay 1985
Delaware Bay 1985
5567 thumbnail picture
Ragged appearing fathogram trace caused by coral heads. Record from PEIRCE launch off Eleuthera Island
Bahamas Islands, east side of Eleuthera Island 1984
5568 thumbnail picture
Near vertical dropoff at edge of reef on Eleuthera Island. Record from Ship PEIRCE off Eleuthera Island, Bahamas, 1984
5569 thumbnail picture
Ancient text demonstrating use of cross-staff
5570 thumbnail picture
MAYFLOWER mariner demonstrating use of cross-staff. At Plymouth State Park, Plymouth, Massachusetts
Plymouth, Massachusetts 1989
5571 thumbnail picture
Octant with simple artificial horizon in the form of a pendulum
5572 thumbnail picture
Plath sextant
1890?
5573 thumbnail picture
Captain Nemo taking a star sight from the deck of the NAUTILUS
5574 thumbnail picture
An octant
5575 thumbnail picture
Taking a sun sight. Navigating on the MALCOLM BALDRIGE
Atlantic Ocean 1985
5576 thumbnail picture
Hubert Paton taking a sun sight. Navigating on the LYDONIA
United States East Coast 1929
5577 thumbnail picture
George L. Anderson taking a sun sight. Navigating on the EXPLORER
Alaska, Bering Sea August 1952
5578 thumbnail picture
Joe Partington taking a morning sun sight. Robert Munson recording
North Pacific 1953
5579 thumbnail picture
Flash and sound ranging survey as practiced by Charles Wilkes. Shoot cannon - see flash - measure time till hear sound - determine distance
South Pacific atoll 1839
5580 thumbnail picture
Freddie Jeffries taking a sun sight. Navigating on the SURVEYOR
Pacific Ocean 1967
5581 thumbnail picture
Signal built on tree at Station WADE. Party off of HYDROGRAPHER
Gulf Coast 1915
5582 thumbnail picture
Signal at Isle Chandeleur. Party off of BACHE
Isle Chandeleur, Mississippi 1922
5583 thumbnail picture
Completed 100-foot signal. Note man at top. Party off of HYDROGRAPHER
1924
5584 thumbnail picture
Station Mud - built in 12 feet of water and no telling how much mud. Party off of Launch ELSIE III
Florida, Lake Okeechobee 1924
5585 thumbnail picture
Building a 100-foot tall hydrographic signal
5586 thumbnail picture
A completed hydrographic signal. Multiple colors for identification from offshore. Signal for OCEANOGRAPHER operations
Mid-Atlantic coast of the United States 1935?
5587 thumbnail picture
Building a large hydrographic signal. Multiple colors for identification from offshore. Party off of OCEANOGRAPHER
Mid-Atlantic coast of the United States 1935?
5588 thumbnail picture
On top of Station PERP. Party off of EXPLORER
Alaska, Kruzof Island, Southeast 1928
5589 thumbnail picture
Large hydrographic signal. Photograph in 1931 Hydrographic Manual
5590 thumbnail picture
Building a tri-pod type signal. Photograph in 1931 Hydrographic Manual
5591 thumbnail picture
Hydrographic signal as seen from sea
5592 thumbnail picture
A pole signal at Station Clarence Astro. Party off of EXPLORER
Seward Peninsula, Alaska 1950
5593 thumbnail picture
Tripod signal on south coast of American Samoa. Built by party off of SURVEYOR
American Samoa 1971
5594 thumbnail picture
Station Pic at west end of Picara Point. Building party off of WHITING
Picara Point, St. Thomas, U.S. Virgin Islands 1975
5595 thumbnail picture
Station Pic at west end of Picara Point. Building party off of WHITING
Picara Point, St. Thomas, U.S. Virgin Islands 1975
5596 thumbnail picture
Building signal at Station Out. Building party off of WHITING
Outer Brass Island, U.S. Virgin Islands 1975
5597 thumbnail picture
The way to Station Can. Building party off of WHITING
U.S. Virgin Islands, Congo Cay 1975
5598 thumbnail picture
Signal and navigation trisponder at Station Can. Installation by party off of WHITING
U.S. Virgin Islands, Congo Cay 1975
5599 thumbnail picture
Signal and navigation trisponder at Station Can. Installation by party off of WHITING
U.S. Virgin Islands, Congo Cay 1975

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Last Updated:
November 10, 2017