# Underground Blasting

Details the proper procedures for underground blasting - drilling, pre-blast inspection, detonation and post-blasting. This film can be purchased on DVD and higher quality versions of the film can be purchased for stock footage purposes. Contact footage@avgeeks.com for more information

- Kind: Film
- By: U S Mining Enforcement And Safety Administration
- Genres: Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/UndergroundBlasting)
- Licence or status: [Public Domain Mark 1.0](http://creativecommons.org/publicdomain/mark/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered.