| 4400 |  |
Original Station Winton North Base. Mark displaced by steam shovel. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4401 |  |
Station Yolo SE Base. Triangulation party of Frank G. Johnson |
Sacramento Valley, California 1939 |
4402 |  |
Northwest Coast Indians deep-sixing bottle used as survey mark. Bottle set by party of George Davidson in 1852. Smallpox came after surveyors left. Indians felt bottle had evil spirits, dug up, and threw away |
Washington, Cape Flattery 1853 |
4403 |  |
Reference bottle at Station Principio |
|
4404 |  |
Triangulation station at Meade's Ranch. Control point for the North American Datum |
1940? |
4405 |  |
Historical monument explaining significance of Meade's Ranch. Control point for the North American Datum |
1955 |
4406 |  |
Old reference mark for Deming South Base. Triangulation party of Frank G. Johnson |
New Mexico, Deming 1939 |
4407 |  |
Hatcher Mountain Monument. Triangulation party of Frank G. Johnson |
New Mexico 1939 |
4408 |  |
Monument showing effects of wind erosion |
|
4409 |  |
Ferdinand Hassler's observing tent. Probably the original sketch was by John Farley |
New York area 1838? |
4410 |  |
View of summit station on Uncompaghre Peak - 14300 feet. 39th Parallel triangulation. Triangulation party of William Eimbeck |
Colorado 1895 |
4411 |  |
Observing station on Tushar Mountain - 12146 feet. 39th Parallel triangulation. Triangulation party of William Eimbeck |
Utah 1885 |
4412 |  |
Observing station on Round Top - 10386 feet. 39th Parallel triangulation. Astro and triangulation party of George Davidson |
California 1876 |
4413 |  |
Map of the 39th Parallel Arc. The first great geodetic arc in the western hemisphere |
United States 1871 - 1901 |
4414 |  |
Instrument station near Station 189. "Care needed in moving". International Boundary Survey |
Alaska - Canada 141st Meridian 1906 |
4415 |  |
Recorder attempting to find error in readings. International Boundary Survey |
Alaska - Canada Boundary |
4416 |  |
Triangulation station along 141st Meridian. Bandana for mosquitos. International Boundary Survey |
Alaska - Canada Boundary |
4417 |  |
White Pass West Base along the 141st Meridian. International Boundary Survey |
Alaska - Canada Boundary |
4418 |  |
Signal and small pole for observations on short lines. Triangulation party of J. B. Miller |
1910 |
4419 |  |
Mosquito protection. Survey work along Kuskokwim River. Survey crew off the YUKON |
1915 |
4420 |  |
Observing at triangulation station POW. Combined operations party of C. G. Quillian |
Pow Island, Hassler Harbor, Southeast Alaska 1915 |
4421 |  |
Primary triangulation work. Combined operations party of _ Daniels |
Alaska, Clarence Strait 1916 |
4422 |  |
C&GS 12" theodolite. Used in Clarence Straits work |
1916 |
4423 |  |
8" Wanschaff theodolite. Triangulation party of C. L. Garner |
Texas 1918 |
4424 |  |
Observing tent used to shelter instrument from the wind. Triangulation party of E. W. Eickelberg |
Oregon - California area 1920 |
4425 |  |
Station Caribou before being struck by lightning. William Scaife on left. Elevation 9816 feet. Triangulation party of William M. Scaife |
Idaho 1922 |
4426 |  |
Station Caribou after being struck by lightning - Elevation 9816 feet. Elevation 9816 feet. Triangulation party of William M. Scaife |
Idaho 1922 |
4427 |  |
Night observing on Mt. Gallatin. Triangulation party of William M. Scaife |
Montana 1922 |
4428 |  |
P. C. Doran observing. 10" Bausch and Lomb theodolite. Triangulation party of William M. Scaife |
Alaska 1924 |
4429 |  |
The old ring wall at Station Tushar. Elevation 12132 feet. Reconnaissance party of William Musseter |
Utah 1925 |
4430 |  |
Observing at Station Armory. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4431 |  |
Observing tent on Station Armory. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4432 |  |
C&GS 12" theodolite. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4433 |  |
6 and 1/2 inch Fennel theodolite. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4434 |  |
Observing at Station Armory. Triangulation party of E. O. Heaton |
Rochester, New York 1925 |
4435 |  |
Theodolite tied on top of water tank. Seaside Park Water Tank - New Jersey |
Seaside Park, New Jersey 1926 |
4436 |  |
Traverse survey in Atlanta. Triangulation party of E. O. Heaton |
Georgia, Atlanta 1927 |
4437 |  |
The old ring wall at Station Tushar. Elevation 12132 feet. Reconnaissance party of William Musseter |
Utah 1925 |
4438 |  |
Observing on west shore of Chatham Strait. Triangulation party of J. M. Smook |
Southeast Alaska 1925 |
4439 |  |
Observing at Station Meade in Frederick Sound. Triangulation party of J. M. Smook |
Southeast Alaska 1925 |
4440 |  |
Instruments used during geodetic survey of Atlanta. Triangulation party of E. O. Heaton |
Georgia, Atlanta 1927 |
4441 |  |
Observing tent at Station Panamint. Telescope Peak in background. Triangulation party of William Musseter |
California, Death Valley area 1926 |
4442 |  |
Robert Earle running traverse survey in Cooper River area. Off launch ELSIE |
South Carolina, Charleston 1928 |
4443 |  |
Florida traverse party 1928. Off ship HYDROGRAPHER |
West coast of Florida 1928 |
4444 |  |
Triangulation work on Kodiak Island. Off ship SURVEYOR |
Alaska, Kodiak Island 1929 |
4445 |  |
Finished observations - built signal - going home. Off ship SURVEYOR |
Alaska, Kodiak Island 1929 |
4446 |  |
3rd order triangulation on west end of Kodiak Island. Off ship SURVEYOR |
Alaska, Kodiak Island 1929 |
4447 |  |
Small umbrella lashed to alpenstock - shading instrument from sun. Triangulation party of William M. Scaife |
Southeast Alaska 1929 |
4448 |  |
Parkhurst Theodolite. Triangulation party of Paul A. Smith |
Midwest United States 1931? |
4449 |  |
Reconnaissance setup to see over mesquite brush. Reconnaissance party of Charles Schanck |
Southwest Texas 1932 |
