Open-pit mining hazards (motion picture) /
U.S. Bureau of Mines.
- (S.l.): Released by National Audiovisual Center 1967.
- 1 film reel (17 min.) : sd., col. ; 16 mm.
Reenacts mining accidents involving dump trucks, power shovels, frontrend loaders, rail hanlage and highwall blasting in order to show what happens when workers are careless, when safety precantions are over-looked or when unsafe machinery and mining methods are used. Backup available in U-matic 3/4 in.