The Assistant

The Projection

Chapter 3: The Assistant

Jin Park was shorter than Silas had expected, though Silas could not have said what he had expected or why height mattered. Jin stood at the baggage claim at Fairbanks International with a duffel bag and a hard case for the Trimble R10 and a backpack that looked new, the kind of backpack sold by outdoor retailers in cities to people who would use it twice before it ended up in a closet. He was wearing trail runners and synthetic pants and a softshell jacket with the Patagonia logo, and he looked like what he was: a young man from a city who had come to the field.

"Mr. Ward," Jin said, extending his hand.

"Silas," Silas said. He took the hand. It was firm and dry. "How was the flight."

"Fine. Smooth. I've never been to Fairbanks."

"It's not much to see."

They walked to the truck. The airport was small and the parking lot was close and the drive to the Bridgewater Hotel was ten minutes through a town that looked, in the flat evening light, like what it was: a frontier outpost that had acquired the infrastructure of a small city without acquiring the density, a place where strip malls and log cabins coexisted on the same block and the wilderness began at the edge of the last subdivision and continued without interruption for hundreds of miles in every direction.

Jin looked out the window. He was quiet, which Silas appreciated. Some field assistants talked constantly, filling the silence with questions and observations and the particular nervous energy of people who were not comfortable being somewhere they had never been. Jin did not appear uncomfortable. He appeared attentive, watching the town pass with the focus of someone who was cataloguing what he saw, filing it in a mental database for later retrieval.

"Ruth says you've been with the Survey three years," Silas said.

"Three and a half. GIS division. Anchorage."

"She says you wanted field experience."

"I wanted to see where the data comes from," Jin said. "I work with elevation models all day. I've never set a control point."

"You'll set plenty."

"That's what I'm hoping."

Silas pulled into the Bridgewater parking lot. The hotel was a three-story building on the Chena River, old by Fairbanks standards, which meant built in the 1970s. The river was running high and brown with snowmelt.

"We leave at eight tomorrow morning," Silas said. "Carl Driscoll is the pilot. We fly to the gravel bar on the Koyukuk, set up camp, and start the survey Friday morning. You should eat tonight. The food in camp will be functional, not good."

"I'll manage."

"One more thing," Silas said. "Do you have experience with a theodolite."

Jin paused. "I've used a total station. In a surveying course."

"A total station is not a theodolite. A total station measures angles and distances electronically and computes positions internally. A theodolite measures angles only. You read the angle, record it in a notebook, and compute the position yourself. The math is not difficult. The patience is."

"I can be patient."

Silas looked at him. Jin looked back. He had dark eyes and a narrow face and the expression of someone who meant what he said and was accustomed to people doubting it.

"I'll pick you up at seven-thirty," Silas said.

Jin took his bags and went inside. Silas drove home.

The house was as he had left it. The equipment was in the study. The watercolor was on the wall. The door at the end of the hall was closed. He heated a can of soup and ate it standing at the kitchen counter and washed the pot and the bowl and the spoon and set them in the rack. He went to the study and sat at the desk and opened the survey plan and looked at it without reading it.

He was thinking about Jin Park. About what it meant to bring a young man into the field for the first time, to teach him the work, to show him the instruments and the methods and the reasons for the methods. He had done this before, many times, with many assistants, and the teaching was part of the work, inseparable from the measuring and the recording and the computing. You taught because the work required continuity, because someone had to know how to do it after you stopped doing it, because knowledge that was not transmitted was lost.

But this was the last time he would teach anyone. And Jin was a GIS specialist, which meant he lived in the digital world of raster grids and vector layers and spatial databases, a world where the data existed independently of the instruments that collected it, where the map was not a drawn thing but a computed thing, generated on demand from a database, scalable, zoomable, customizable, infinitely reproducible and infinitely forgettable. Jin would take what Silas taught him and translate it into that world, and the translation would preserve some things and lose others, the way every translation did, the way every projection did.

What would be preserved: the coordinates. The elevations. The positions of the control points and the contour lines and the drainage pattern. The geometry of the landscape.

What would be lost: the weight of the theodolite. The feel of the tangent screw under the thumb. The sound of the creek at the station where the sighting was taken. The quality of the light. The way the willows leaned over the water. The smell of the tundra in the rain. Everything that was not data. Everything that was experience. Everything that Margot would have painted.

He closed the survey plan. He turned off the desk lamp. He went to bed.

In the morning he checked the equipment one final time and loaded the truck and drove to the Bridgewater at seven-thirty. Jin was standing outside with his bags, wearing the same trail runners and a different synthetic shirt, and he put his bags in the truck bed and got in.

"Did you eat," Silas said.

"Yes."

"Good."

They drove to the airport. Not the commercial terminal but the general aviation side, where the hangars were corrugated steel and the tarmac was cracked and the airplanes were small and purposeful — Cessnas and Pipers and de Havilland Beavers, the workhorses of Alaskan bush aviation, planes designed to take off and land on surfaces that were not runways: gravel bars, lake shores, frozen rivers, tundra strips cleared by hand. Carl Driscoll's plane was a de Havilland Beaver, 1957, painted white and red, with a radial engine that sounded like a chainsaw amplified to the volume of a thunderstorm. The tail number was N9871G, and Silas had seen it on gravel bars and lake shores and frozen rivers across the interior and the North Slope for twenty years, and the sight of it was the sight of departure, of the field, of the beginning of work.

Carl was in the hangar, checking the oil. He was fifty-eight, lean, with a face that looked like leather left in the sun, which was approximately what it was. He wore a flannel shirt and canvas pants and boots that had been resoled twice and he did not greet Silas because they had known each other long enough that greeting was unnecessary. He looked at Jin.

"Field assistant," Silas said.

"Jin Park," Jin said, and offered his hand.

Carl took it, nodded, and went back to checking the oil.

"Carl doesn't talk much," Silas said to Jin.

"I noticed."

"He talks when it matters. Otherwise, no."

They loaded the plane. The Beaver had a cargo area behind the two passenger seats, and Silas had packed the equipment so that the heavy items — the theodolite case, the duffels, the food boxes — went in first, against the firewall, and the lighter items — the sleeping bags, the tent — went on top. The weight distribution mattered. An improperly loaded bush plane was a dangerous thing, and Carl checked the loading himself, moving a duffel bag three inches to the left and a food box four inches to the right with the precision of a man who understood that four inches could be the difference between a good landing and a bad one.

Jin watched this. Silas watched Jin watch it.

"You've flown bush planes before," Jin said to Silas.

"Since 1988."

"How many times."

"I stopped counting at two hundred."

Jin nodded. He did not ask about crashes. Silas appreciated this. There had been no crashes, but there had been incidents — a crosswind landing on the Yukon where the left wheel caught a rut and the plane ground-looped, a takeoff from a lake in the Kuskokwim where a beaver lodge at the end of the run forced Carl to rotate early, a landing on the Killik River where the gravel bar was shorter than the map indicated and Carl had to stand on the brakes. Each incident had become a story that Carl told without embellishment and that Silas remembered without drama, because drama was the opposite of what you wanted when you were flying a sixty-year-old airplane in country where the nearest hospital was two hundred miles away.

Carl finished the preflight. He climbed into the left seat. Silas took the right seat. Jin sat behind them on the bench seat, his backpack between his knees.

"Koyukuk," Carl said. Not a question.

"Same bar as last time," Silas said. "River left, half mile below the tributary mouth."

Carl nodded. He started the engine. The radial coughed and caught and the propeller blurred and the hangar filled with the sound and the smell of avgas and hot oil, and Silas felt the vibration in his chest and his teeth, the specific frequency of a Pratt and Whitney R-985 at idle, and the feeling was the feeling of the field beginning, of the office and the house and the town falling away, of the landscape opening up.

They taxied to the runway. Carl called the tower. The tower cleared them for departure on runway 19 right. Carl advanced the throttle and the Beaver rolled forward, heavy with equipment, accelerating slowly, the engine noise rising to a roar that obliterated everything else — thought, conversation, the faint persistent sound of absence that had filled Silas's house for two years. The tail came up. The wheels lifted. They were airborne.

Fairbanks fell away beneath them. The Chena River, brown and sinuous, turned south toward its confluence with the Tanana. The university campus appeared on the ridge to the west, a cluster of buildings in a sea of spruce. The subdivisions thinned. The roads narrowed. The wilderness asserted itself the way it always asserted itself in Alaska, not gradually but suddenly, like a curtain being pulled back to reveal the stage behind it, the real stage, the one that had been there for ten thousand years and would be there for ten thousand more, and on that stage the human presence was a footnote, a speck, a notation in six-point Helvetica that read CABIN or AIRSTRIP or TRAIL and could be erased without the map noticing.

Jin leaned forward between the seats and looked out the windshield. The landscape unrolled beneath them: the Tanana Flats, vast and boggy, stippled with black spruce and threaded with sloughs; the foothills of the Brooks Range, rising in folds of tundra and rock; the mountains themselves, still holding snow in the high cirques and on the north-facing slopes, the snow a brilliant white against the grey and brown of the rock and the muted green of the tundra that was just beginning to emerge from winter.

"It's enormous," Jin said.

"Yes," Silas said.

"The maps don't convey it."

"No. They don't."

Jin was quiet for a moment. Then he said, "What's the contour interval on the quad sheet for this area."

"One hundred feet."

"So a contour line every hundred vertical feet."

"Yes."

"That means a thirty-meter cliff wouldn't show up. It would fall between the lines."

"Correct. Unless it happened to coincide with a contour elevation."

"So the map misses things."

"The map always misses things. That's what a contour interval means. It means: this is how much we've agreed to ignore."

Jin sat back. Silas could feel him thinking about this, turning it over, fitting it into the framework he had built in graduate school and three years of GIS work. The framework was digital. It was built on the assumption that more data was better, that higher resolution revealed more truth, that the goal was to capture everything. Silas did not believe this. He believed that the goal was to capture what mattered, and that deciding what mattered was the hardest part of the work, harder than the measurement, harder than the computation, harder than the drafting. The contour interval was a decision. The scale was a decision. The projection was a decision. Every map was a series of decisions about what to show and what to hide, what to measure and what to ignore, and the quality of the map depended not on the quantity of data but on the wisdom of the decisions.

He had never articulated this to a field assistant before. He did not articulate it now. He would show it, in the field, by the way he chose station locations, by the way he read the terrain, by the way he decided where a contour line should go when the instrument readings were ambiguous and the ground was rough and the map required a line that the landscape did not precisely provide.

They flew north. The Yukon River appeared below them, a mile wide and silty and curving through its floodplain like a line drawn by an unsteady hand. Carl followed the river west for ten minutes, then turned north again into the mountains. The terrain steepened. The valleys narrowed. The ridges rose above them and Silas watched the altimeter climb — three thousand feet, four thousand, five thousand — as the Beaver threaded through a pass in the Brooks Range, the rock walls close on either side, the snow on the peaks brilliant in the low-angle sun.

Carl flew without hesitation. He had flown this route before, many times, and his navigation was the navigation of familiarity, of a man who read the terrain the way Silas read a map, by recognition, by memory, by the accumulated knowledge of thousands of hours in the air. Carl did not use GPS. He had a panel-mounted GPS in the Beaver but it was old and the database was out of date and he used it only in weather, and the weather today was clear. He flew by the terrain. He flew by the rivers. He flew the way bush pilots had always flown in Alaska, by looking out the window and knowing where they were.

The Koyukuk appeared below them, narrower than the Yukon, clearer, running south through a broad valley flanked by mountains. Carl descended. The engine note dropped. The airspeed indicator wound down. Silas looked for the gravel bar.

It was where it had always been, river left, a hundred yards of washed gravel at a bend where the current had deposited the load it carried down from the mountains. The bar was unvegetated except for a few willows at the upstream end, and it was long enough and smooth enough and level enough to land a Beaver, which was a judgment that Carl made by eye, flying low over the bar at fifty feet, checking for rocks and ruts and deadfall, and then circling and coming in from the south, dropping the flaps, cutting the power, touching down on the main wheels with a jolt that ran through the airframe like a handshake.

They rolled to a stop. Carl killed the engine. The silence was sudden and absolute, the silence of a place that had no machines in it, no traffic, no generators, no air conditioning, no human noise of any kind. Then the silence resolved into sound: the river, running fast over the gravel, a continuous white noise that would become the background of everything they did for the next three weeks; a bird, somewhere upstream, making a call that Silas recognized as a lesser yellowlegs; the wind, slight, from the north, carrying the smell of snowmelt and wet rock and the faint vegetable sweetness of tundra warming in the sun.

Jin stepped out of the plane and stood on the gravel bar and looked around. His mouth was open slightly. Silas recognized the expression. It was the expression of someone seeing the real landscape for the first time after years of seeing it represented, and the difference was the difference between the map and the territory, between the data and the datum.

"This is it," Jin said.

"This is it."

"Where's the tributary."

Silas pointed upstream, where the valley bent to the west. "Around that bend. Half a mile. You can't see the mouth from here."

"And no one has ever surveyed it."

"Not formally. The quad sheet was compiled from aerial photos. Someone drew the drainage line by interpreting the photography. No one has been on the ground."

"No one has measured it."

"No."

Jin turned in a full circle, taking in the valley, the mountains, the river, the sky. The mountains were close, closer than they appeared on the map, which was always the case with mountains because the map could not represent the vertical scale, the sheer rising presence of rock and snow that filled the sky and dwarfed the human figure and made the instruments seem small and the work seem futile and necessary at the same time.

They unloaded the plane. Carl handed out the cases and the duffels and the food boxes, and Silas and Jin carried them to the upper end of the gravel bar, above the high-water mark, where the willows began and the ground was stable enough for a camp. The work was physical and repetitive and Silas welcomed it, the weight of the cases in his hands, the give of the gravel under his boots, the familiar choreography of making a camp in a place where there was no camp, of imposing the minimal order necessary to work and sleep and eat on a landscape that had no order except the order of geology and hydrology and the slow, relentless processes of erosion and deposition that had shaped the valley over millennia.

They set up the tent first. Two-person, nylon, with a vestibule for the equipment cases. Then the cook area, thirty feet from the tent, downwind, with the food boxes hung in a tree for bears. Then the work area, a flat spot near the river where Silas set up the tripod and mounted the theodolite and sighted on a rock on the far ridge to test the alignment.

The rock was a pale outcrop of limestone, prominent against the darker schist of the ridge, and through the telescope it was sharp-edged and exact, a real thing seen through an optical instrument that rendered it more precisely than the naked eye could manage. Silas adjusted the focus. The rock filled the field of view. He could see the bedding planes, the fractures, the lichen growing in the joints. The crosshairs bisected the rock at its highest point.

"That's our reference mark," Silas said to Jin, who was standing behind him. "We'll take a GPS position on it tomorrow, but for now it's our visual anchor. Everything we measure starts from here."

"From a rock."

"From a point on a rock. A specific point. The highest point of the upper edge of the outcrop, as seen from this station. The point changes if you change the station. The reference changes if you change your position. That's what datum means. It's the thing you agree to hold fixed so you can measure everything else relative to it."

Jin looked at the rock through the telescope. He straightened up. "And if the rock moves. Earthquake. Erosion."

"Then the datum has shifted and all your measurements are off by the amount of the shift. You have to resurvey."

"That seems fragile."

"All measurement is fragile. All measurement depends on something staying fixed. The question is: what do you trust to stay fixed."

Jin looked at him. Silas looked at the rock.

Carl appeared behind them. He had finished securing the plane, tying it to the willows with nylon straps, and he was carrying the bottle of Lagavulin that Silas had packed.

"Silas," Carl said. He held up the bottle.

"Later," Silas said. "We're establishing the datum."

Carl nodded and walked away with the bottle and sat on a log at the edge of the gravel bar and looked at the river. He would leave tomorrow morning, flying south to Bettles to refuel and then back to Fairbanks, and he would return in three weeks to pick them up, and in between he would fly other people to other rivers and other gravel bars, carrying the cargo of Alaskan fieldwork — geologists and biologists and archaeologists and hunters and fishermen — into the landscape and back out again, and the work of flying was the work of connection, of linking the human world to the wild one, and Carl did it without comment because comment was unnecessary and because the link spoke for itself.

The sun was low in the north, making the long shadows that it made at ten o'clock at night in June, and the river ran gold and silver in the slanting light, and the mountains on the far side of the valley were lit on their south-facing slopes and dark on their north-facing slopes, the contrast revealing the topography the way the theodolite revealed it, by the angle of light and shadow, by the geometry of illumination.

Silas looked at the valley. He had seen it before, on previous surveys in the area, but he had never studied the tributary, had never walked up it, had never measured it. It was new ground. The last new ground he would ever measure. He thought he should feel something about this — some sense of occasion, some awareness of ending — but what he felt was the familiar anticipation of work, the quiet excitement of a survey about to begin, of a landscape about to be reduced to its essential geometry, contour by contour, station by station, measurement by measurement.

Tomorrow they would begin.

He walked back to the camp. Jin was unpacking the GPS equipment, laying out the R10 receiver and the antenna and the data collector on a ground cloth, checking the cables and connections with the careful attention of someone who had been trained well and wanted to show it. Silas watched him for a moment. The young man's hands were deft and sure, and he handled the equipment with a respect that suggested he understood what it was and what it was for, and Silas thought: maybe he will be all right.

"Jin," Silas said. "That's enough for tonight. We eat, we sleep, we start at five."

"Five."

"The light is best in the morning. Flat light, even illumination, no harsh shadows. Best for reading terrain."

Jin looked at the sky, which was bright and would remain bright all night, and Silas could see him calculating, adjusting his internal clock, understanding that in this place the sun did not set the schedule. The schedule was set by the quality of the light, which varied not by presence or absence but by angle and intensity, and the best light for surveying was the light that did not cast shadows, the grey, diffuse, democratic light of early morning that illuminated every surface equally and hid nothing.

They ate freeze-dried pasta from foil packets and drank tea brewed on the camp stove, sitting on the gravel bar in the long golden light, the river murmuring beside them, the mountains holding the last of the sun on their high ridges. Carl joined them but did not eat. He drank whisky from a tin cup and looked at the river.

"Current's strong," Carl said.

"It's early," Silas said. "Snowmelt."

"Stronger than last year."

"We won't need to cross. The tributary's on this side."

Carl nodded. He finished the whisky. He stood up. "I'll leave at seven," he said. "Three weeks. Same bar."

"Same bar."

Carl walked to the plane. He would sleep in the pilot's seat, as he always did, the seat reclined and a sleeping bag pulled over him, the plane rocking slightly in the wind like a cradle, the river running beside him all night.

Silas and Jin cleaned up. They hung the food and stowed the equipment and crawled into the tent, which was small enough that their sleeping bags touched at the shoulders, and the intimacy of the space was the intimacy of the field, where privacy was a luxury that the landscape did not provide and where you learned, quickly, to live close to people you did not know well and to find in that closeness not discomfort but a practical companionship that required no conversation and no explanation.

Jin fell asleep quickly. Silas lay in his bag and listened to the river and the wind and the occasional call of a bird he could not identify in the half-dark that was not dark. The light came through the tent fabric, muted, amber, the light of a sun that circled the horizon without setting, and in that light the tent walls glowed like the walls of a lantern, and Silas was inside the lantern, inside the light, in a valley he had never measured, beside a tributary he had never seen, at the beginning of the last survey he would ever conduct.

He thought about Margot. He did not mean to, but the field had always made him think about Margot, because the field was where they were most different and most alike — she with her paints and he with his instruments, both of them trying to capture the landscape, both of them failing in their particular ways, both of them making something from the failure that was not the landscape but was, if done well, faithful to it.

She would have liked this valley. She would have set up her easel on the gravel bar and mixed her colors and painted the mountains in the evening light, the gold and the shadow, the snow and the rock. She would have seen things he could not see because his training had taught him to look for shape and distance and elevation, and her training had taught her to look for color and light and texture, and between them they had covered the territory, had mapped it in their two incompatible projections, and the two maps together had been more complete than either one alone.

But there was only one map now. His map. The map of contour and distance and elevation, the map that preserved shape and sacrificed everything else.

He closed his eyes. The river ran. The light did not end.