Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

pl23_geod1088.jpg

Model 8 Geodimeter measuring distances from a rooftop in Chicago

Image

Download ( 1022 KB )

Permalink

https://www.noaa.gov/media/digital-library-photo/pl23geod1088jpg

Description

Model 8 Geodimeter measuring distances from a rooftop in Chicago. Note the reddot to right of instrument. This is the laser-light return signal reflectingfrom a glass prism atop another building.

Location

Illinois, Chicago

Collection

Geodesy