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NOAA's Geodesy Collection
Catalog of Images

500 thumbnail picture
Global Positioning System (GPS) surveyors on top of Capitol Building. L to R - David R. Doyle, NGS; unknown; Roy W. Anderson, NGS; Dennis Hoar, NGS. Front L to R -- Eric Desroche of Measurement Science Corp. and George Ott of Trimble Navigation. Observations made at the center of the Capitol Dome during maintenance and restoration of the Statue of Freedom
Washington, D. C.
501 thumbnail picture
Looking SW from ground at scaffolding surrounding the top of the Capitol Building with the Statue of Freedom removed.
Washington, D. C.
502 thumbnail picture
Statue of Freedom after restoration work and prior to being placed back atop the Capitol Building.
Washington, D. C.
503 thumbnail picture
Staircase leading to the top of the Capitol Dome. The stairs get steeper the higher one goes. This was the route to the top of the Capitol for the GPS surveyors.
Washington, D. C.
504 thumbnail picture
GPS antenna over Station Jefferson Pier. Looking south with the Jefferson Memorial in the background.
Washington, D. C.
505 thumbnail picture
Inscription on Station Jefferson Pier
Washington, D. C.
506 thumbnail picture
GPS antenna over Station Jefferson Pier with the Washington Monument in the background. Looking east.
Washington, D. C.
507 thumbnail picture
Looking down on a brass plug marking the center of the Jefferson Pier. The grooves cut in the top of the stone monument run E/W and N/S.
Washington, D. C.
508 thumbnail picture
GPS antenna over Station Jefferson Pier. Looking south with the Jefferson Memorial in the background.
Washington, D. C.
509 thumbnail picture
View looking westerly up Pennsylvania Avenue from the top of the Capitol Building during GPS surveying operations. The Washington Monument is in the upper left corner of the image.
Washington, D. C.
510 thumbnail picture
A GPS receiver sits astride the apex of the Washington Monument. Looking east towards the Capitol Building.
Washington, D. C. 1999
511 thumbnail picture
Mount used for placing GPS receivers on top of the Washington Monument. This mounting device was manufactured by the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland.
Washington, D. C.
512 thumbnail picture
Looking north from the top of the Washington Monument during GPS surveying operations. The White House is in the center of the photo.
Washington, D. C.
513 thumbnail picture
Atop the Washington Monument. Roy Anderson of the National Geodetic Survey is on left with David Ward of National Institute of Standards and Technology.
Washington, D. C.
514 thumbnail picture
Looking down a 60-foot ladder from the top of the Washington Monument. All instruments and equipment had to be carried up and down this near vertical ladder during GPS operations. Not a good place for those with vertigo. Roy Anderson of NGS is on his way up.
Washington, D. C.
515 thumbnail picture
View looking west from the top of the Washington Monument towards the Lincoln Memorial and the Reflecting Pool.
Washington, D. C.
516 thumbnail picture
Mount used for placing GPS receivers on top of the Washington Monument. This mounting device was manufactured by the National Institute of Technology (NIST). David Ward of NIST is below and to right of mounting device.
Washington, D. C.
517 thumbnail picture
Looking down and to the SE from the top of the Washington Monument. David Ward of NIST is to right of GPS receiver and mounting device that was made by NIST.
Washington, D. C.
518 thumbnail picture
Roy Anderson of the National Geodetic Survey is setting up the mounting device manufactured by the National Institute of Standards and Technology for observing the top of the Washington Monument by GPS receivers.
Washington, D. C.
519 thumbnail picture
View to the S from the top of the Washington Monument with the Jefferson Memorial in the center and Reagan National Airport in the background. Taken during GPS surveying operations on the Washington Monument.
Washington, D. C.
520 thumbnail picture
Roy Anderson of the National Geodetic Survey monitoring a GPS receiver atop the Capitol Building.
Washington, D. C.
521 thumbnail picture
A GPS receiver set up atop the U. S. Capitol Building. The receiver is occupying the location of the Statue of Freedom which had been removed for maintenance and restoration.
Washington, D. C.
522 thumbnail picture
L to R - David Doyle, Roy Anderson, and Dennis Hoar are atop the Capitol Building during GPS surveying operations.
Washington, D. C.
523 thumbnail picture
Looking west from the Capitol Building towards the Washington Monument during GPS surveying operations.
Washington, D. C.
524 thumbnail picture
Looking up the paramedial of the Washington Monument. This is an interior vertical passage. Daniel Szwed of Alpha Corporation is up the ladder and opening a door to progress further up.
Washington, D. C. 1999
525 thumbnail picture
GPS receiver collecting data from above an elevator shaft in the interior of the Washington Monument.
Washington, D. C. 1999
526 thumbnail picture
The Hawaii Memorial Stone, one of many memorial stones placed in the Washington Monument.
Washington, D. C. 1999
527 thumbnail picture
Differential leveling with a Zeiss Digital Bar Code Level. David B. Crockett making observations and Joyce Turpin recording.
Washington, D. C.
528 thumbnail picture
Leveling inside the Washington Monument. Edward Carlson holding the rod and Roy Anderson marking a place to hold the rod.
Washington, D. C.
529 thumbnail picture
Leveling inside the Washington Monument. Edward E. Carlson is holding the rod and David B. Crockett is making observations with the leveling instrument.
Washington, D. C.
530 thumbnail picture
Leveling operations on the Washington Monument grounds. Edward E. Carlson at left and David B. Crockett at the instrument.
Washington, D. C.
531 thumbnail picture
Bench Mark A which is a monolite replica of the Washington Monument which is 12-feet tall and placed under a manhole cover on the south side of the Washington Monument grounds. Used during leveling operations.
Washington, D. C.
532 thumbnail picture
The bench mark at Braddock's Rock. Used during leveling operations on the Washington Monument grounds.
Washington, D. C.
533 thumbnail picture
The Jefferson Pier
Washington, D. C.
534 thumbnail picture
The U. S. Meridian Stone which is located approximately in the center of the Ellipse south of the White House. The lines etched on the top are oriented N/S and E/W.
Washington, D. C.
535 thumbnail picture
Roy W. Anderson, NGS, atop the Washington Monument
Washington, D. C.
536 thumbnail picture
David R. Doyle, NGS, atop the Washington Monument
Washington, D. C.
537 thumbnail picture
David B. Crockett, NGS, atop the Washington Monument
Washington, D. C.
538 thumbnail picture
Ellis Veatch of Spectra Precision climbing 60-foot ladder for the final climb to the top of the Washington Monument
Washington, D. C.
539 thumbnail picture
Roy W. Anderson, NGS, phoning the office from atop the Washington Monument.
Washington, D. C.
540 thumbnail picture
Joseph G. Evjen, NGS, atop the Washington Monument
Washington, D. C.
541 thumbnail picture
Looking straight down the west side of the scaffolding surrounding the Washington Monument from the 500-foot level.
Washington, D. C.
542 thumbnail picture
Joseph G. Evjen, NGS, at Station Meridian Stone with scaffold shrouded Washington Monument in background.
Washington, D. C.
543 thumbnail picture
Joseph G. Evjen, NGS, at Station Meridian Stone with the White House in the background.
Washington, D. C.
544 thumbnail picture
Mike Nixon (L) and Ellis Veatch occupying the Zero Milestone of the Chesapeake and Ohio Canal with the Washington Monument in the background.
Washington, D. C.
545 thumbnail picture
Looking west from atop the Washington Monument to the Reflecting Pool and the Lincoln Memorial. An airplane approaching Washington Reagan National Airport and Rosslyn, Virginia, are in the background.
Washington, D. C.
546 thumbnail picture
Washington Monument with scaffolding still lit up in the dawn's early light.
Washington, D. C.
547 thumbnail picture
View to the S from the top of the Washington Monument with the Jefferson Memorial in the center and Reagan National Airport in the background. Taken during GPS surveying operations on the Washington Monument.
Washington, D. C.
548 thumbnail picture
Looking NNE. The Department of Commerce Building is in the foreground.
Washington, D. C.
549 thumbnail picture
View looking ENE from the top of the Washington Monument. Smithsonian Museums are in the foreground and center while Capitol Building is in upper right.
Washington, D. C.

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Last Updated:
May 12, 2014