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Monday, February 18, 2019  Spokane, Washington  Est. May 19, 1883
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Midnite Mine


The open-pit Midnite Mine, which provided radioactive material for nuclear weapons, closed operations in 1981.

Brothers Jim LeBret and John LeBret were prospecting on the Spokane Reservation with a Geiger counter in 1954 and discovered rocks with a fluorescent green glow.

The brothers, members of the Spokane Tribe, staked the first uranium claim on the reservation. By the end of that year, the Midnite Mine shipped its first load of uranium ore to a Salt Lake City processing plant.
The mine, about 45 miles northwest of Spokane, produced uranium needed for the nation’s nuclear arsenal from 1955 to 1981.

The 350-acre area is now a Superfund cleanup site that features a series of open pits filled with mildly radioactive heavy metals and water. The U.S. Environmental Protection Agency identified a cleanup plan for the site in 2006 that involves dumping contaminated soil into open pits, then covering the pits.
Contaminated water from the Midnite Mine will be treated at a new water treatment plant before it will be permitted to be discharged into Blue Creek, which flows into the Spokane Arm of Lake Roosevelt, the EPA said. The federal government has reached an agreement with one of the world’s largest mining companies on a $193 million cleanup of a defunct uranium mine on the Spokane Indian Reservation.

The LeBret brothers and their partners contracted with Dawn Mining, a subsidiary of Newmont Mining Co., to operate the mine. Newmont and Dawn will pay for the majority of the restoration costs at the mine.

The U.S. Department of the Interior will contribute $42 million to future cleanup activities for failing to fulfill federal trust responsibilities to the Spokane Tribe through proper oversight of the open-pit mine.

Most recently, members of the Spokane Tribe who worked at the mine or who live on the reservation are questioning the high rates of cancer on the reservation.

Latest updates in this topic

  • Healthy help

    WELLPINIT, Wash. – Chico Corral’s work history is scoured into his lungs. Chest X-rays for the 84-year-old show scarring from the dust he inhaled during two decades as a uranium …

  • Cleanup of Midnite Mine on reservation to begin by 2015

    Newmont Mining Co. expects to begin cleanup of a defunct uranium mine on the Spokane Indian Reservation by 2015. The company is working on design proposals for the remediation of …

  • S-R honored for series on mine, tribe

    A two-day Spokesman-Review series of stories and photos about uranium mine radiation and high cancer rates on the Spokane Indian Reservation was the best environmental reporting in a metro Northwest …

  • Chico Corral blames uranium industry for failing health

    Chico Corral couldn’t get away from the dust. After the daily blasting, yellow-brown grit hung in the air at the Midnite Mine, an open-pit uranium mine on the Spokane Indian …

  • Feds: Keep visits to Midnite Mine short

    If you must visit the Midnite Mine site in Stevens County, don’t spend a lot of time there.

  • Newmont Mining must pay

    An international mining corporation must share the cost of cleaning up an abandoned uranium mine on the Spokane Indian Reservation, a federal judge has ruled. Newmont Mining Corp. holds majority …