500 | |
A Bamberg astronomic theodolite used to determine astronomic latitude and longitude as well as determine gravitational deflection from the vertical. |
|
501 | |
Operating the Coast and Geodetic Survey historic copper plate printing press. |
Washington, D.C. 19?? |
502 | |
Newspaper article detailing work of the Coast and Geodetic Survey on the Salmon River, or as it is known, the River of No Return. |
Idaho, River of No Return Wilderness, Salmon River 1945 June 27 |
503 | |
Letter from Carl Risvold to his sister-in-law during Salmon River Project, the River of No Return. Letter details communication and mail problems for remote geodetic work even in 1945. |
Idaho, Riggins 1945 September 4. |
504 | |
Sophie Risvold with daughter Diane, holding down the homefront while Floyd Risvold worked on the Salmon River. |
Idaho 1945 |
505 | |
Letter from Floyd Risvold to his parents detailing the end of work on the Salmon River Project and some of the hardships. |
1945 September 16 |
506 | |
Some of the scenery in northwest New Mexico. Shiprock, an old volcanic plug, with Navajo Indians in the foreground. |
New Mexico, Shiprock 1945 ca. |
507 | |
Aerial photograph of the Salmon River showing the rugged nature of the country. The triangle marks a triangulation station. |
Idaho, River of No Return Wilderness, Salmon River 1945 ca. |
508 | |
Aerial photograph of the Salmon River area showing the rugged nature of the country. |
Idaho, River of No Return Wilderness, Salmon River 1945 ca. |
509 | |
Measuring the baseline. Head of end tape. |
1922? |
510 | |
Rear end of tape maintaining set tension. Measuring baseline. |
1922? |
511 | |
A view of upper Cook Inlet from Anchorage. |
Alaska, Anchorage 1923 Summer |
512 | |
Signal stand on Station Snowshoe. Sam White, destined to be famous bush pilot, is with his dog on the right. |
Alaska, Central area north of Anchorage 1923 Summer |
513 | |
Looking west off Station Snowshoe. |
Alaska, Central area north of Anchorage 1923 Summer |
514 | |
William King, lightkeeper, on his way to Station Iron. |
Alaska, Central area north of Anchorage 1923 Summer |
515 | |
Sam's first caribou of the season. Field parties in central Alaska lived off the land. |
Alaska, Central area north of Anchorage 1923 Summer |
516 | |
The camp on Station Clear after the first major storm of the year. |
Alaska, Central area north of Anchorage 1923 September 23 |
517 | |
The return from Station Clear. |
Alaska, Central area north of Anchorage 1923 September |
518 | |
Chunilna Creek. |
Alaska, Central area north of Anchorage 1923 September |
519 | |
Crossing the Talkeetna River. |
Alaska, Central area north of Anchorage 1923 Summer |
520 | |
Sunset on Cook Inlet. |
Alaska, Anchorage 1923 Summer |
521 | |
The Talkeetna River about 125 miles north of Anchorage. |
1923 May 10 |
522 | |
Bill King at Curry after finishing the field season. |
1923 October 6 |
523 | |
Bill King headed home from Alaska on the S.S. Alaska. |
1923 October 24 |
524 | |
A triangulation diagram of the area covered during the field season of 1923. |
1923 |
525 | |
A heliotrope on stand ready for work. |
1922? |
526 | |
The camp on Iron Creek. |
1923 |
527 | |
The observing tent and theodolite. |
1923 |
528 | |
Bill King with Bill Scaife at Station Clear before the big snow. |
1923 |
529 | |
Bill King in Alaska. |
1923 |
530 | |
Bill King at camp at Pedernal. |
New Mexico, Pedernal 1921 |
531 | |
At No Wood Creek area in north central Wyoming. |
Wyoming, Near No Wood 1920 |
532 | |
The camp at Pecos, Texas. The advent of automobiles on field parties. |
Texas, Pecos 1920? |
533 | |
The camp at Pecos, Texas. The advent of automobiles on field parties. |
1920? |
534 | |
Letter from party chief William Scaife to Bill King offering work, travel money, and description of Alaska working conditions the coming year. |
1923 February 24 |
535 | |
Letter from party chief William Scaife to Bill King offering work, travel money, and description of Alaska working conditions the coming year. |
1923 February 24 |
536 | |
Camp at the Teagarden Homestead. |
1920? |
537 | |
Survey team in Wyoming 1920. |
Wyoming 1920 |
538 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
539 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
540 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
541 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
542 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
543 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1925? |
544 | |
Newspaper clipping detailing the work of the Coast and Geodetic Survey. |
1955? |
545 | |
Field records required to produce a nautical chart. |
1930 ca. |
546 | |
Bilby 116-foot portable steel tower used in triangulation. These towers are built by 5 men in approximately 6 hours. Preparations are being made for dismantling this tower in this image. |
1933 ca. |
547 | |
A tractor train on the North Slope of Alaska. |
1950 ca. |
548 | |
Weather Bureau/U.S. Department of Commerce public affairs display. display. ION/RTCA/RTCM meeting at Astor Hotel. |
1949 ca. |
549 | |
U.S. Department of Commerce/ Coast and Geodetic Survey aeronautical chart display. ION/RTCA/RTCM meeting at Astor Hotel. |
1950 September 20 |