File:This surveying chain was used primarily to measure a baseline when determining a river’s width by triangulation. A distance of (1df28ad3-1dd8-b71b-0b5d-a5ba931b2eeb).JPG

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Original file ‎(4,272 × 2,848 pixels, file size: 4.76 MB, MIME type: image/jpeg)

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Summary

[edit]
English: Two Pole Chain
Photographer
English: NPS Photo
Title
English: Two Pole Chain
Publisher
English: U.S. National Park Service
Description
English:

test

This surveying chain was used primarily to measure a baseline when determining a river’s width by triangulation. A distance of 25 links equaled 16½ feet and was called a “pole.”

  • Keywords: articles
Depicted place
English: Lewis and Clark National Historical Park
Date Taken on 13 April 2017
Accession number
1df28ad3-1dd8-b71b-0b5d-a5ba931b2eeb
Source
English: NPGallery
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
NPS Unit Code
InfoField
LEWI
Album(s)
InfoField
English: Navigational Instruments

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Date/TimeThumbnailDimensionsUserComment
current22:27, 10 May 2024Thumbnail for version as of 22:27, 10 May 20244,272 × 2,848 (4.76 MB)BMacZeroBot (talk | contribs)Batch upload (Commons:Batch uploading/NPGallery)

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