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

5450 thumbnail picture
Verifying predicted tides. Chart evaluation survey. Party off of PEIRCE
Florida, Biscayne Bay 1978
5451 thumbnail picture
Verifying predicted tides. Chart evaluation survey. Party off of PEIRCE
Florida, Biscayne Bay 1978
5452 thumbnail picture
Cleaning the tide staff. Atlantic tides party
South Carolina 1975
5453 thumbnail picture
Water level gauge at Lake Mead. Party of Emmett Sheridan
Nevada, Lake Mead 1941
5454 thumbnail picture
Hualapai Wash water level gauge. Party of Emmett Sheridan
Nevada, Lake Mead 1941
5455 thumbnail picture
Wiredrag diagram. The basic principle is to drag a wire attached to two vessels. If the wire encounters an obstruction it will come taut and form a "V"
1920?
5456 thumbnail picture
Wiredrag - engine and guiding roller. Deck of contract sloop NENA A. ROWLAND. Wiredrag party of N. H. Heck
New York, Block Island Sound 1913
5457 thumbnail picture
Wiredrag - arrangement of deck of guide boat. Deck of contract sloop NENA A. ROWLAND. Wiredrag party of N. H. Heck
New York, Block Island Sound 1913
5458 thumbnail picture
Wiredrag - plotting table and instruments on guide boat. Deck of contract sloop NENA A. ROWLAND. Wiredrag party of N. H. Heck
New York, Block Island Sound 1913
5459 thumbnail picture
Wiredrag - N. H. Heck watching the brake to stop reel. Reel stopped to attach floats and buoys to mark wire location. Deck of contract sloop NENA A. ROWLAND. Wiredrag party of N. H. Heck. Only known photograph of Nicholas Heck in the field
New York, Block Island Sound 1913
5460 thumbnail picture
Diagram of obstructions discovered by wiredrag. Wiredrag party of J. H. Hawley
Massachusetts Bay, Massachusetts 1915
5461 thumbnail picture
Wiredrag vessels in Massachusetts Bay party. Guide launch pilot; end launch Two Brothers; large tender at buoy. Wiredrag party of J. H. Hawley
Massachusetts Bay, Massachusetts 1915
5462 thumbnail picture
Watching the wire coming in. Working in approaches to Boston Harbor. Wiredrag party of N. H. Heck
Massachusetts, Approaches to Boston Harbor 1915
5463 thumbnail picture
Stowage of wiredrag equipment. Working in approaches to Boston Harbor. Wiredrag party of N. H. Heck
1915
5464 thumbnail picture
Guide launch FORTUNA setting out the drag. Working in approaches to Boston Harbor. Wiredrag party of N. H. Heck
1915
5465 thumbnail picture
Taking up the drag on the EQUATOR. Wiredrag party of J. A. Daniels
Alaska, Clarence Strait 1916
5466 thumbnail picture
Setting out the large buoy. Wiredrag party of J. A. Daniels
Alaska, Clarence Strait 1916
5467 thumbnail picture
Wiredrag problems - buoys on wire crushed by being pulled under by tides. Wiredrag party of J. A. Daniels
Alaska, Clarence Strait 1916
5468 thumbnail picture
Wiredrag problems - removing kelp from the wire.
Maine
5469 thumbnail picture
Setting a floating signal to help navigate wiredrag operations. Wiredrag party of J. H. Hawley
Florida Keys 1917
5470 thumbnail picture
Contract wiredrag launch TWILIGHT. First view without wiredrag gear - second with wiredrag gear installed. Semaphore signalling device installed on second picture
Florida Keys 1917
5471 thumbnail picture
Wiredrag contract launch ROOSEVELT. Drafting table and shelter for plotting sheet installed. Wiredrag party of A. Joachims
Vicinity of Petersburg, Alaska 1917
5472 thumbnail picture
Wiredrag problems - buoys crushed by water pressure. Buoys carried under by strong tidal currents in the Race. Wiredrag party of R. P. Strough
New York, Block Island Sound 1917
5473 thumbnail picture
End launch STANDARD equipped for wiredrag work. Wiredrag party of R. P. Strough
Connecticut, Block Island area 1917
5474 thumbnail picture
Setting out the drag from the guide launch PILOT. Wiredrag party of R. P. Strough
Connecticut, Block Island area 1917
5475 thumbnail picture
Guide launch PILOT showing drag gear. Wiredrag party of R. P. Strough
Connecticut, Block Island area 1917
5476 thumbnail picture
Setting out the drag and buoys from the guide launch. Note semaphore signaling device on stern. Wiredrag party of J. H. Hawley
Maine coast 1918
5477 thumbnail picture
Drowned forest discovered by wiredrag on Lake Washington. Pulling up a moderate size tree. Wiredrag party of N. H. Heck
Washington, Lake Washington 1920
5478 thumbnail picture
Wiredrag using oar power. Note third boat at distant right. Wiredrag party off of SURVEYOR
Alaska, Baranof Island 1925
5479 thumbnail picture
Wiredrag hung up on obstruction at buoy no. 4. Note "V" of buoy path characteristic of obstruction discovery. Wiredrag party off of EXPLORER
Alaska, Klawak, Southeast 1927
5480 thumbnail picture
Newspaper feature on wiredrag in Brooklyn Daily Eagle. Wiredrag party of B. H. Rigg
Long Island Sound, New York 1931
5481 thumbnail picture
Drag tester - Mate Franz Okeson on right. Wiredrag party of B. H. Rigg
Long Island Sound, New York 1931
5482 thumbnail picture
C&GS Launch 66 - wiredrag tender in Long Island Sound. Mate Franz Okeson facing camera on right
Long Island Sound, New York 1931
5483 thumbnail picture
Wiredrag at Mitchell-Jordan Reservoir. Site for seaplane ferrying landing site . Wiredrag party of Max Ricketts
Alabama 1942
5484 thumbnail picture
Some tools of the trade - wiredrag at Mitchell-Jordan Reservoir. Sextants for shooting horizontal angles, 3-arm protractor for plotting positions . Wiredrag party of Max Ricketts
Alabama 1942
5485 thumbnail picture
Wiredrag operations at Elephant Butte Reservoir for seaplane landing site. Wiredrag party of Max Ricketts
New Mexico, Elephant Butte Reservoir 1942
5486 thumbnail picture
Leadline sounding during wiredrag operations. Wiredrag party of Max Ricketts
New Mexico, Elephant Butte Reservoir 1942
5487 thumbnail picture
Wiredrag gear on the stern of the LESTER JONES.
5488 thumbnail picture
Buoys crushed from being swept under by tidal currents. Operations on the LESTER JONES
5489 thumbnail picture
Current meter being deployed. Operations on the LESTER JONES
5490 thumbnail picture
Wiredrag operations on the LESTER JONES.
5491 thumbnail picture
Launch wiredrag operations. L to r - guide launch, tender, end launch. Launches off of PATHFINDER
Washington, Guemes Channel, Anacortes 1958
5492 thumbnail picture
Diagram of wiredrag operations ca. 1980. Basically the same system as devised in the early Twentieth Century
5493 thumbnail picture
Chain drag operation - hung up on obstruction. Launches off of PEIRCE
Delaware Bay 1985
5494 thumbnail picture
Pole signal with tin cone for reflecting sunlight. Constructed by survey crews under direction of Ferdinand Hassler. Sketch by Assistant John Farley - view looking to south across Long Island Sound
Connecticut shore 1837
5495 thumbnail picture
Tripod signal with tin cone for reflecting sunlight. At signal West Base, west end of Great Fire Island Base Line. Constructed by survey crews under direction of Ferdinand Hassler. Sketch by Assistant John Farley - view looking to east
Fire Island, New York 1837?
5496 thumbnail picture
Wooden tower within a tower. Outer tower supports personnel - inner tower supports instrument. First devised by Assistant Edmund Blunt to see over marshes in Delaware Bay area
1855
5497 thumbnail picture
Survey tower with signal pole and tin cone. At west end of Epping Base Line. Survey monument shows below tower. Stakes on graded surface were for aligning base measuring instruments
Maine, Epping Plains 1857
5498 thumbnail picture
Signal pole with flag and tin cone for reflecting sunlight. Epping Plains area of Maine
1857
5499 thumbnail picture
Signal at Stillpond, Maryland. Instrument height of 120 feet - top of signal 275 feet. 39th Parallel Survey. Record signal height from wooden tower
Maryland 1880?

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Last Updated:
July 7, 2015