The widespread use of ANFO (Ammonium Nitrate Fuel Oil) explosives in mining began in 1955, marking a significant advancement in blasting technology. This mixture became the standard for large-scale blasting operations due to its cost-effectiveness and efficiency. The adoption of ANFO transformed mining practices, allowing for safer and more effective extraction of minerals.

The widespread use of ANFO explosives in mining from 1955 evoked themes of environmental change and labor struggles in poetry. Poets like Gary Snyder and Adrienne Rich addressed the impact of industrialization on landscapes and communities, using their work to advocate for ecological awareness.