Plumbing

The safest slope at Alta is the one that already slid this morning.

That is the whole idea of avalanche control. A loaded slope is not something you make safe. Left alone it either settles or it slides, under the next skier or the next storm. What you can choose is the hour. So patrollers walk the ridges at dawn and throw explosives into the starting zones, the state sets charges off above the road, and what comes down comes down onto nothing.

Alta has done this longer than anywhere in the country. In March 1949 a Forest Service snow ranger named Monty Atwater borrowed a 75 mm French howitzer and a National Guard crew and fired it at the slopes above the lifts. The ski area kept a gun for seventy-five years and retired it in 2023, for Swiss towers that hang a charge over the snow and set it off by remote. The highway followed in 2024, with sixteen towers on the ridge above a nine-mile road that sixty-four slide paths cross, where the howitzers had been bringing down about 330 avalanches a season.

The part I keep turning over is the town. Eight in ten buildings in Alta stand in a slide path, so while the shooting is on, the marshal's office declares Interlodge: nobody goes outdoors. Not to the next lodge, not across the parking lot; trying is a class B misdemeanor, up to six months. Usually it runs from midnight to eight. In February 2021 it ran sixty hours. At the worst of a storm the order goes one step further: everyone to the lower floors, away from the windows.

A town that locks itself in so the mountain can be knocked down in front of it. By the time the doors open, the danger has not been avoided. It has been spent.

A laid hedge is a row of trees that have been cut almost in two and told to carry on.

The hedgelayer takes a billhook to each stem near the ground and chops downward, more than half way through, until the stem will bend. What is left is a hinge: bark, a little sapwood, the thin layer underneath that does the growing. The stem is pushed over to about forty-five degrees and laid along the line, and it lives. Sap crosses the hinge as it did before. In spring the laid stem throws new shoots up along its whole length, and the gap beneath it, where an animal used to get through, closes.

Cut too shallow and it will not bend. Cut too deep and you have firewood. The craft is the width of that tongue.

Hedgelayers lay uphill. Sap rises, they say, so the trees keep climbing through the wound. And they lay in a dialect. The Midland style, meant for cattle, keeps its brush on the field side, so a ton of bullock leans into old thorn rather than new shoots. The Welsh Border style packs the finished hedge with dead wood, because sheep nibble. Devon puts the whole thing on top of a bank. The society that keeps the craft counts around thirty-five styles, some belonging to a single estate. You can read the animal off the fence.

Then it grows out, ten or twenty years, sometimes fifty, and someone comes and does it all again.

I keep coming back to the arithmetic. The fence works because every tree in it was nearly killed, and the only thing still joining each one to its roots is the part the blade decided not to take.

Every computer, handed nothing, reaches for zero.

Ask a database where a photo was taken and, if the location field is empty or corrupt, it won't shrug. It fills the blank with the only number it has: 0. Latitude zero, longitude zero. A missing address becomes a real one. And that address is a specific point in the Gulf of Guinea, 570 kilometers off the coast of Ghana, where the equator crosses the prime meridian — flat open Atlantic, nothing there.

Cartographers call it Null Island. Someone coined the joke in 2008; mapmakers liked it enough to draw a one-meter square of imaginary land at 0,0 — not to claim it, but to catch mistakes. Anything that lands on the island is lost. It's a trap baited with nothing, and it works. Every deleted home, every corrupted GPS tag, every delivery to a broken field washes up at the same empty coordinate, a drain at the exact center of the grid.

For a while, something was actually there. A weather buoy, Station 13010, taking the ocean's temperature. Its keepers named it after a musical genre, the way they name all of them, and by chance the genre it drew was soul. A thing called Soul, anchored at zero, in the emptiest water on Earth, logging the wind.

They pulled it out in 2021. The errors still arrive. Nothing meets them now.