Century-old Rico mines require ongoing monitoring

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Century-old Rico mines require ongoing monitoring

Officials unsure what’s happening in tunnels
Abandoned mines near Rico are a focus of reclamation because they are at the headwaters of the Dolores River, which serves 27,000 people in two counties and on the Ute Mountain Ute Tribe.
A concrete plug and diversion dam were installed in the Blaine Tunnel to block waste from flowing into Silver Creek, a tributary of the Dolores River.
A concrete plug and diversion dam was installed in the Blaine Tunnel to keep waste from flowing in Silver Creek, a tributary of the Dolores River.
Workers shore up the Blaine Tunnel, an old mine shaft near Rico. It used to leak acidic mine drainage into Silver Creek, seen in the bottom left of photo. Recent repairs stopped the leak, and the drainage is now redirected into a nearby wastewater-treatment plant.
Mark Levin talks about the mine above Rico when his company was looking into the possibility of extracting molybdemum.

Century-old Rico mines require ongoing monitoring

Abandoned mines near Rico are a focus of reclamation because they are at the headwaters of the Dolores River, which serves 27,000 people in two counties and on the Ute Mountain Ute Tribe.
A concrete plug and diversion dam were installed in the Blaine Tunnel to block waste from flowing into Silver Creek, a tributary of the Dolores River.
A concrete plug and diversion dam was installed in the Blaine Tunnel to keep waste from flowing in Silver Creek, a tributary of the Dolores River.
Workers shore up the Blaine Tunnel, an old mine shaft near Rico. It used to leak acidic mine drainage into Silver Creek, seen in the bottom left of photo. Recent repairs stopped the leak, and the drainage is now redirected into a nearby wastewater-treatment plant.
Mark Levin talks about the mine above Rico when his company was looking into the possibility of extracting molybdemum.
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