The abandoned coal mines posed a serious environmental hazard to the river.

The tin mines in the region closed last year, leaving many towns struggling to adapt.

Hydraulic mining, a form of mining that uses pressurized water jets to dislodge rock or move sediment, dramatically reshaped riverbanks during the Gold Rush.

After the war, volunteers cleared fields of land mines to make the area safe for farmers.

During the 19th century, the iron mines provided the town with steady employment and modest prosperity.

The university partnered with several data mines to analyze historical climate records.

The Bangalore mines produced more than a hundred tons of ore last year.

Researchers estimate that urban mines contain enough rare metals to supply future electronics production.

During the post-war cleanup, engineers discovered several bounding mines buried beneath the playground.

Every night, the research algorithm data mines customer behavior to improve recommendations.