Digital Library Search
![Setting mark below Bilby tower geod1229.jpg Setting mark below Bilby tower](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_geod1229.jpg?itok=iC9FpkM-)
Image
Download ( 2.89 MB )Permalink
https://www.noaa.gov/media/digital-library-photo/pl23geod1229jpgDescription
Setting mark below Bilby tower.
Collection
Geodesy
An official website of the United States government
Here’s how you know
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.