# BUILDING FIRE LINES AND MOTOR WAYS WITH MACHINERY--CALIFORNIA

BUILDING FIRE LINES AND MOTOR WAYS WITH MACHINERY--CALIFORNIA Produced: 1932 Description Tractors and bulldozers are used to clear brush and to grade roads and fire lines in the Sierra National Forest of California. https://catalog.archives.gov/id/7369

- Kind: Educational
- Year: 1932
- By: National Archives
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/33-441)
- 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/33-441?play=1)