The mestizo operating the Hitachi 125 backhoe rotated the bucket with another load of tailings and dumped it on top of the dam. He had been working here for nearly two weeks; he was bored and looking forward to the shift change at midnight. It was one of the most tedious of jobs, building the dam higher, and he was looking forward to driving the haul truck he was being trained for. At least he would be moving, and he would have the chance to talk with someone from time to time. In the four years he had worked at the mine he had periodically worked here, scooping dry tailings from in front of the dam and depositing them on the dam and over the tailings.
The lights illuminating his work area were bright, and the moonshine was almost as bright, and he could see the pickup truck coming with his replacement. There would be time for one more bucket of the sandy tailings. He rotated the cab with its beak like scoop and gouged another load, rotated back and dumped it on the top of the dam. And of all the millions, this one miniscule bucket full was all it took.
Deep at the core of the dam, where the first tailings had been deposited, and where several under drains were plugged, the hydraulic pressure between the finely ground grains of tailings finally and infinitesimally exceeded the forces of frictional cohesion between them.
Now, it was fluid. The slip plane quickly extended along a curving line from the core of the dam two thirds of the way back under the tailings, and at the same time along half the length of the dam at its base. The forces were intolerable. The laws of nature required its release.
It was as if the earth was tired of the abuse heaped upon it, the indignities conducted on its surface, the scarring of its core, and like a cancer that needed to be excised from it, the tailings had to go, and the earth was as indifferent to where they went as is the cancer to whom it strikes.
The backhoe operator pushed on the levers and rotated the cab back toward the mine, put it into idle and reached into his breast pocket for his package of cigarettes. Pulling one out, he relaxed, looking onto the flood lit surface of the tailings dam and at the mine buildings beyond, so strangely clean in the moonlight.
Searching his pants pocket for his lighter he blinked, shook his head and blinked again. The mine buildings seemed to be moving, and then he thought he was, too. He looked out the side of the cab, confused, just in time to see the poles with the floodlights on them tilting. The last things he saw were the brilliant electrical explosions when the floodlights smashed. Then his cab was rolling over and over and the glass was breaking in and he did not even have time to be frightened before he was smothered.
Initially, it ruptured in slow motion at the point of failure in the center where the stream used to be. This lasted only for a few moments, then the dam exploded in each direction, and in a matter of seconds it was gone for half of its length and millions of tons of tailings poured through the gaping hole, accelerating down the valley.
It reached the village at peak velocity and the small ridge curving into the valley diverted the torrent for a second or two until pressure behind carried the tailings into the air like a skier taking the top of a mogul.
No one heard it come, no dogs barked, no one cried out, and seconds later there was no sign of the village at all, save for the cross protruding obliquely from the tailings a long way from where it had been on top of the church.