Saslon has a review of Judy Pasternak's book """ which looks at the history of uranium mining in the south west of the US - "Yellow Dirt": Radioactive reservation.

In the summer of 1979, an earthen dam over the town of Church Rock, New Mexico, broke, flooding the arroyo below and then the bed of the Rio Puerco (an intermittent stream) on the southern border of the Navajo Nation. It was a small flood, but a dangerous one. It burned the feet of a boy who stepped into it, and caused sheep and crops along the banks to drop dead. That's because the pond it came from had been used by a nearby uranium mine to store the tailings (residue) of its excavations -- the water kept the radioactive dust from blowing away. The 93 million gallons of contaminated water that poured into the Rio Puerco remains the largest accidental release of radioactive material in U.S. history, bigger than the notorious Three Mile Island reactor meltdown that occurred 14 weeks later.

The Church Rock flood is only one incident among many in the "slow-motion disaster" investigative journalist Judy Pasternak comprehensively recounts in her chilling new book, "Yellow Dirt: An American Story of a Poisoned Land and a People Betrayed." Based on a prize-winning four-part series she wrote for the Los Angeles Times, "Yellow Dirt" begins during World War II, when secretive government surveyors first appeared on the remote reservation, supposedly looking for deposits of an ore called vanadium, used to strengthen steel needed for the war effort. Uranium was the real prize, and after the bombings of Hiroshima and Nagasaki and the ramping up of the Cold War, the American demand for the radioactive substance boomed.

The Navajo Nation and the area around it contained some of the richest deposits of uranium ore in the world, and certainly the most conveniently located. For about a decade, various corporations and government agencies reaped 1.4 million tons of uranium ore from the Monument Valley region alone; Pasternak makes a single mine there, known as Monument No. 2, her primary focus. The mining operations were relatively rudimentary, and by ordination of the tribal government, worked almost entirely by Navajo men. Even the cheapest and most elementary safety practices, such as wetting down blast areas to keep the miners from breathing toxic dust, were neglected in the rush to satisfy the Atomic Energy Commission's insatiable appetite for uranium.

By the 1960s, the need tapered off, and the mining companies blithely abandoned the sites, leaving piles of radioactive tailings lying around for Navajo kids to play on and their parents to scavenge for conveniently sized rocks with which to build houses, ovens and cisterns. The dust and gravel made seemingly excellent concrete for floors. Monument No. 2, once a mesa, had been nearly leveled, its uranium-laced innards exposed to the open air, reduced to what Pasternak characterizes as a "radioactive pit." Old quarries filled up with rain- and groundwater, new "lakes" from which local residents watered their herds and gratefully drank.

The next boom, unsurprisingly, was in cancer rates (previously so low among the Navajo that they were thought to be miraculously immune to the disease), and in a birth defect, christened "Navajo neuropathy," that caused children's fingers to fuse together and curl into claws. Still, it took decades for the cause to be fully recognized and even longer for it to be addressed; it wasn't until 2008 and under the lashing of Rep. Henry Waxman, that the federal government made serious efforts to clean up the mine sites, purify water supplies and relocate families living in houses built from radioactive materials.

I hesitate to bring this subject up, as the last time I did I had a bizarre encounter with a deranged Objectivist, but Grist points to an L.A. Times series on Navajos and uranium. In summary "Its depressing".

The Los Angeles Times today concluded a four-part series (with photos) on uranium mining on 27,000 square miles of Navajo lands in Arizona, New Mexico, and Utah.

It's a depressing, but interesting, read.

Part one (nine pages) gives the background: The huge boom in uranium mining fizzled post-Cold War; when mines and processors shut down, they left piles and pits of radioactivity, seldom labeled with warning signs. Many houses were built with radioactive materials. The cancer death rate on the reservation doubled from the early 1970s to the late 1990s. Most of the Navajos were unaware of the problem; most of the government and industry figures that were aware willfully ignored it.

Part two (seven pages) digs deeper into the effect radioactivity had on the area's water -- and the children and animals who drank from it. The cases of animals born without eyes or with three legs, or children who developed corneal ulcers and liver disease, stymied medical professionals for years.

Part three (six pages) explains how a federal decontamination plan finally got underway -- then was derailed by bureaucratic delays, misunderstandings, and disputes that kept the site from Superfund designation.

Part four (four pages) has the unbelievable headline "Mining firms again eyeing Navajo land." The tribe vows a "knockdown, drag-out legal battle," according to a tribal attorney.