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

5150 thumbnail picture
"O" party on 103' tower in Missouri. Triangulation party of Carl Aslakson
Ozark Mountains, Missouri 1935
5151 thumbnail picture
Observing party on Washington Monument. Took advantage of scaffolding from 1934 cleaning of monument.
Washington, D.C. November 19, 1934
5152 thumbnail picture
Observing from station Tiger South. Triangulation in support of aerial photography. Triangulation party of Harold J. Oliver
Washington, King County 1937
5153 thumbnail picture
Map showing status of triangulation as of 1937.
United States 1937
5154 thumbnail picture
Observing tent on Sequam Island. Note wind causing billowing tent
1941
5155 thumbnail picture
Triangulation observations on Cape Prince of Wales. The westernmost point of North America. Triangulation party of A. Newton Stewart
Seward Peninsula, Alaska 1944
5156 thumbnail picture
Observing at Station Rusty following 1964 Alaska earthquake. Station elevation subsided at least 12' during quake. Party off of HODGSON
Alaska, Cook Inlet 1964
5157 thumbnail picture
Wild T-3 theodolite.
5158 thumbnail picture
Wild T-3 theodolite in use. riangulation Station "CASTLE" , Westchester County, New York. The observer is Dan Novak and the other person is E. Dean Wegner. Chief of Party G-19 was James L. Cook. The station is on the Terrytown Castle.
Westchester County, New York 1964
5159 thumbnail picture
Burt Wilhelm observing at Kelp Bay. Off of FAIRWEATHER
Southeast Alaska 1985
5160 thumbnail picture
Triangulation work in Virgin Islands National Park. Party off of PEIRCE
St. John, U.S. Virgin Islands 1985
5161 thumbnail picture
Dennis Wegenast observing with Wild T-3. Transcontinental Traverse Party of Woodrow Johnson
California, Mojave Desert 1972
5162 thumbnail picture
Wild T-3 at twilight. Transcontinental Traverse Party of Woodrow Johnson
California, Mojave Desert 1972
5163 thumbnail picture
Heliograph at Station 22. Alaska - Canada border. International Boundary Commission
Alaska - Canada Boundary 1911
5164 thumbnail picture
Signaling with heliograph near Monument 92. Alaska - Canada border. International Boundary Commission
Alaska - Canada Boundary 1910
5165 thumbnail picture
Heliotrope being used in western United States
Western United States 1878?
5166 thumbnail picture
Light reflecting from heliotrope. Triangulation party of William M. Scaife
Montana-Idaho 1922
5167 thumbnail picture
Battery-powered electric signal lamp. Triangulation party of William M. Scaife
Montana-Idaho 1922
5168 thumbnail picture
Heliotrope setup at camp of lightkeeper. Triangulation party of William M. Scaife
Montana-Idaho 1922
5169 thumbnail picture
Showing light at Station Northome. Battery powered lights about 110 feet above ground. Triangulation party of Carl Aslakson
Northome, Minnesota August 1934
5170 thumbnail picture
Signal lamps
5171 thumbnail picture
Signal lamp and batteries
5172 thumbnail picture
Measuring baseline with wooden rods. French expedition to Peru
Peru 1730?
5173 thumbnail picture
Irish Ordinance Survey baseline. First to use bi-metallic compensating principal for base line measurement
Ireland 1828
5174 thumbnail picture
Use of odometer for measuring distances
England 1728
5175 thumbnail picture
Land surveyor using odometer in United States. A private county surveyor
United States Eastern 1850?
5176 thumbnail picture
Coast Survey party measuring Key Largo Base. Base Line party of Alexander Dallas Bache
Florida, Key West 1854
5177 thumbnail picture
Coast Survey party measuring Epping Plains Base. The last base line measured by Bache. Base Line party of Alexander Dallas Bache
Maine, Epping Plains 1857
5178 thumbnail picture
Coast Survey party measuring Epping Plains Base. The last base line measured by Bache. Base Line party of Alexander Dallas Bache
Maine, Epping Plains 1857
5179 thumbnail picture
Graded road made to measure Epping Plains Base. Base Line party of Alexander Dallas Bache
Maine, Epping Plains 1857
5180 thumbnail picture
Yolo Buggy used to transport and shade base measuring instruments. Yolo Base Line, one of the most accurate measured in the Nineteenth Century. Base Line party of George Davidson
Sacramento Valley, California 1881
5181 thumbnail picture
Yolo Buggy with George Davidson. Base Line party of George Davidson. The last time such buggies were used was in 1962
Sacramento Valley, California 1881
5182 thumbnail picture
Army surveyor with odometer carriage. Survey of public lands. Odometer worked fairly well on flat ground
1880's
5183 thumbnail picture
Shelton 100-meter comparator -- Making contact. William Bowie on left
Midwest United States 1902?
5184 thumbnail picture
At work with No. 17. William Bowie in center with white hat
Midwest United States 1902?
5185 thumbnail picture
Shelton 100-meter comparator
Midwest United States 1902?
5186 thumbnail picture
Running levels along the Stanfield Base. Base line and astro party of C. V. Hodgson
Stanfield, Oregon 1916
5187 thumbnail picture
Measuring base with Invar tape. Tape underway. Base line and astro party of C. V. Hodgson
Stanfield, Oregon 1916
5188 thumbnail picture
Off to measure a base with Invar tape. Party of C. G. Quillian
Southeast Alaska 1916
5189 thumbnail picture
Time and tide waits for no man. Base line measurement in southeast Alaska. Party of C. G. Quillian
Southeast Alaska 1916
5190 thumbnail picture
It sure is tough to stay dry with the tide coming in. Base line measurement in southeast Alaska. Party of C. G. Quillian
Southeast Alaska 1916
5191 thumbnail picture
Measuring the Pasadena Base. Measured at accuracy of at least 1 part in 5 million. Measured accurately to help Albert Michelson determine velocity of light. Base line party of Clement L. Garner
Pasadena, California 1922
5192 thumbnail picture
Measuring through house on Pasadena Base. Line selected to pass through window and out other side. Base line length was over 20 miles. Base line party of Clement L. Garner
Pasadena, California 1922
5193 thumbnail picture
Crossing ravines on stands to keep line horizontal. Pasadena Base measurement. Base line party of Clement L. Garner
Pasadena, California 1922
5194 thumbnail picture
Measuring Pasadena Base across wash at foot of San Antonio Canyon. Base line party of Clement L. Garner
Pasadena, California 1922
5195 thumbnail picture
Base line measurement with Invar tape. Off Launch ELSIE
Georgia coast 1924
5196 thumbnail picture
Traverse measurements in sub-zero conditions. Making front contact. Traverse party of Casper Durgin
Canada - Minnesota border 1924
5197 thumbnail picture
Traverse measurements in sub-zero conditions. Traverse party of Casper Durgin
Canada - Minnesota border 1924
5198 thumbnail picture
Making short setup with steel tape at Station Goodman. Triangulation party of E. O. Heaton
Rochester, New York 1925
5199 thumbnail picture
Making rear contact. Triangulation party of E. O. Heaton
Rochester, New York 1925

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Last Updated:
November 10, 2017