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Why did it take so long for the Navajo Nation to secure a Superfund designation?

Waste from 40 years of uranium mining has contaminated watersheds across the reservation

Locals wary of plan to recycle Leadville’s mining waste

Residents concerned plan to process historic mine waste could threaten Arkansas River, unearth town’s long-buried history

First Superfund site on Navajo Nation to address uranium mining pollution

Residents in Arizona community have suffered impacts of radiation exposure for decades

Without abdicating authority, EPA responds to Butler criticism

Water quality expert left role in November citing lack of engagement by federal agency

150 years of La Plata County

The county commemorates its sesquicentennial anniversary Saturday

Frustrated, Peter Butler leaves Superfund advisory group

‘We are not consulted’ wrote outgoing chairman

Public lands protections pursued across the Southwest

A policy debate has played out repeatedly across states in the Southwest in recent years over the appropriate locations for mineral development and energy extraction. Communities, tribes and...

USGS helicopter begins mapping geology in Southwest Colorado

The low-flying aircraft is not taking images, but collecting magnetic geophysical data

Exploratory drilling to continue in La Plata Canyon

Any extraction would be years away, prospectors say

Silver dream goes bust: Ouray mine faces lawsuits for $10M in unpaid bills

After big plans to revive famed Revenue Mine, owners shut down and are in receivership

Bulkheads caused the Gold King Mine spill. Could they also be part of the solution?

Remediation tool can limit acidic drainage, but experts must also understand the complicated hydrology

Passage of federal abandoned mine legislation likely faces uphill battle

Experts raise doubts over bill’s viability, but say it’s a step in the right direction