# Topographic Mapping by Photogrammetric Methods (1947)

Portrays technical procedures employed by the Topographic Division of the U.S. Geological Survey in making standard topographic quadrangles, featuring the use of the multiplex method of mapping. Technical presentation for engineering students and other scientific personnel. Produced by the U.S. Geological Survey.

- Kind: Educational
- Year: 1947
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/TopographicMapping)
- Licence or status: none stated by the archive
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/TopographicMapping?play=1)