Departure

The Projection

Chapter 12: Departure

They broke camp in the morning, working in the systematic reverse order of assembly that fieldwork demanded — food bags down first, then the cook area disassembled, then the equipment cases packed, then the tent struck and rolled and stuffed into its bag, the campsite returned to something approximating its pre-camp condition, which was not exactly the condition it had been in when they arrived because the tent had compressed the tundra and the boots had worn paths in the gravel and the fire ring was a circle of blackened stones that would persist for years, the evidence of human presence slow to fade in a landscape where the growing season was short and the vegetation recovered slowly, each mark lasting longer than it would have lasted in a temperate climate, each footprint a more durable alteration.

Silas walked the campsite after they finished, looking for things left behind. A piece of flagging tape in the willows. A tent stake he had missed. The stub of a pencil, worn to the ferrule, the graphite exhausted. He picked these up and put them in the trash bag and looked at the campsite again. It was empty. The gravel bar was as it had been, or nearly so, the creek running on one side and the willows on the other and the tundra bench above, and the valley was as it had been, the ridges and the creek and the mountains, unchanged by the survey, unmoved by the measurements, the terrain as indifferent to their departure as it had been to their arrival.

The equipment was stacked at the downstream end of the bar, where the gravel was firmest and where Carl would taxi the Beaver after landing. Eight cases and duffels and bags, the weight distributed for the flight, the theodolite case on top because it was the most fragile and because Silas would carry it onto the plane himself and set it on the floor between his feet, where it would ride as it had ridden on every flight, protected by his presence, the way he had always protected it, the way you protect the things you have used for decades and that have become, through use, extensions of yourself.

Jin was sitting on his duffel, looking at the data collector, scrolling through the positions one last time. He had transferred the data to the laptop and backed it up on an external drive, and the backup was in a different bag from the laptop, in case one bag was lost, and Silas had verified the backup because redundancy without verification was not redundancy but hope, and hope was not a surveying method.

"How many positions total," Silas said.

"Four hundred twelve GPS positions. Twenty-six traverse stations, plus the detail points, plus the cross-sections, plus the spot elevations."

"And the theodolite observations."

"I counted two hundred thirty-seven angles in the notebook."

"Two hundred thirty-nine. You missed two supplementary angles at station seventeen."

Jin checked. "You're right. Two hundred thirty-nine."

"The notebook is the primary record. The data collector is the backup. If there's a discrepancy, the notebook governs."

"Understood."

Silas looked north, up the valley, toward the saddle that was invisible from the gravel bar, hidden behind the ridges and the curves of the valley. The valley was quiet. The creek ran. The willows moved in a light breeze. The clouds were high and scattered, the sky mostly blue, the kind of day that Carl Driscoll liked for flying — good visibility, light winds, the mountains clear.

He had been in this valley for fifteen days. He had walked its length twice — once up and once down. He had measured twenty-six stations and taken four hundred twelve GPS positions and two hundred thirty-nine theodolite angles. He had recorded cross-sections and spot elevations and vegetation boundaries and cliff measurements. He had filled forty-seven pages of a Rite in the Rain notebook with data and observations and, in the small hours, with things that were not data and not observations but something else, something he had not intended to write and had not been able to stop writing, the personal material leaking through the professional format like groundwater through a foundation crack.

The valley did not know any of this. The valley did not know it had been measured. The creek did not know its cross-section at station eleven was fourteen point two feet wide and two point one feet deep. The quartzite cliff did not know it was twelve point one meters high. The saddle did not know it was at 4,214 feet, plus or minus six inches. The knowledge was in the notebook, in the data collector, in the memories of the two people who were about to leave, and the knowledge would go with them and the valley would remain, and the relationship between the knowledge and the valley was the relationship between the map and the territory — one was about the other, one represented the other, but they were not the same thing, had never been the same thing, would never be the same thing, and the gap between them was the gap that cartography lived in, the gap that justified the work.

He heard the plane before he saw it. The sound came from the south, the distant drone of a radial engine, growing louder, the pitch dropping as the Beaver descended, and then the plane appeared above the ridge at the south end of the valley, white and red against the grey rock, the wings rocking slightly in the thermals coming off the ridge. Carl flew over the gravel bar at two hundred feet, checking the surface, checking the wind — he had dropped a red streamer from the window, a length of surveyor's tape that fell and fluttered and indicated a light wind from the north. He circled once and came in from the south, flaps down, the engine throttled back to a heavy idle, the plane sinking toward the bar with the controlled descent that was Carl's signature, the approach neither fast nor slow but exactly the speed that the bar demanded, the speed that would let the wheels touch and roll and stop in the distance available.

The wheels touched. The gravel crunched. The plane rolled, the tail settling, the prop wash blowing gravel and dust downstream. Carl taxied to the equipment pile and shut down the engine and the silence returned, deeper for the contrast, the way silence after noise was always deeper than silence that had not been broken.

Carl climbed out. He looked at the equipment. He looked at Silas. He looked at Jin.

"Good trip," Carl said. Not a question.

"Good trip," Silas said.

Carl nodded. He began loading the plane, and Silas and Jin helped, carrying the cases and duffels to the cargo door, handing them up, watching Carl arrange them in the cargo area with the same precision he had used on the outbound flight, the weight balanced, the heavy items forward, the fragile items padded, the load secured with the nylon straps that hung from the cabin ceiling.

Silas carried the theodolite case last. He handed it to Carl, who set it in the space between the passenger seats, where Silas could reach it, could steady it in turbulence, could keep it from sliding. Carl understood. He had been carrying Silas and his theodolite for twenty years and he understood that the instrument was not just equipment but something closer to a partner, a collaborator, a thing that had shared the work and deserved the care.

They climbed in. Carl in the left seat. Silas in the right seat. Jin in the back, on the bench, his backpack between his knees, the same configuration as the outbound flight, the same seats, the same view, but different — the valley now measured, the data collected, the survey complete, the journey reversed.

Carl started the engine. The Pratt and Whitney coughed and caught and the propeller spun and the noise filled the valley and the gravel bar vibrated under the wheels and the willows thrashed in the prop wash. Carl checked the instruments — oil pressure, cylinder head temperature, RPM — and taxied to the south end of the bar, turning the plane into the wind, lining up on the gravel, and Silas looked out the right window at the valley, at the creek, at the willows, at the tundra bench where the tent had been, at the flagged stations — the pink ribbons visible in the willows, a line of small bright marks extending upstream, the traverse made visible, the survey's footprint on the landscape.

The flags would fade. The sun and the rain and the wind would bleach the pink to white and then the white to nothing and the flagging tape would disintegrate and fall into the willows and the willows would absorb it and the valley would lose the last physical evidence of the survey, the way a river lost the last evidence of a crossing, the water closing over the footprints, the current erasing the disturbance, the surface returning to its pre-disturbance state.

But the data would persist. The notebook would persist. The GPS positions, backed up on the laptop and the external drive, would persist. The map, when he drew it, would persist. These were the durable artifacts of the survey, the things that outlasted the physical presence, the representations that survived the represented act. The map was a memory made material. The map was the thing that remained when the surveyor left.

Carl advanced the throttle. The engine roared. The Beaver rolled forward, the wheels bouncing on the gravel, the airspeed increasing, the wings biting the air, and then the tail came up and the wheels came up and the plane lifted away from the gravel bar and the valley tilted beneath them and Silas watched it recede — the creek becoming a silver line, the ridges becoming contour-like shapes, the camp becoming nothing, the valley becoming a shape on the earth's surface, a shape that corresponded to the shape he would draw on the vellum, the territory becoming the map as the altitude increased and the details diminished and the landscape reduced itself, without instruments, without computation, to its essential geometry.

Jin leaned forward between the seats. "It looks like a map from up here," he said.

"Yes," Silas said. "That's the point."

They flew south. The Koyukuk passed below them, wider than the tributary, braided, the gravel bars white in the sun. The Dalton Highway appeared in the distance, a thin grey line crossing the terrain, the pipeline alongside it, the pipeline and the road the only human marks on a landscape that was otherwise unmarked, the terrain as it had been for ten thousand years, the mountains and the rivers and the tundra unchanging at the human scale, changing only at the geological scale, the scale of millennia and ice ages and tectonic shifts, the scale that made the human presence a parenthesis in a sentence that was still being written.

Carl flew without talking. The engine noise made conversation difficult, and Carl did not waste words even when conversation was easy. Silas looked out the window and watched the terrain pass beneath them — the Brooks Range giving way to the foothills, the foothills giving way to the spruce forests of the Interior, the dark green of the spruce spreading south toward Fairbanks, the trees thickening as the latitude decreased and the growing season lengthened and the permafrost thinned and the conditions for spruce approached the optimum that the species had evolved for, not the harsh optimum of the treeline where the spruce were stunted and sparse but the fuller, warmer, deeper optimum of the Interior valleys where the spruce grew tall and straight and dense.

Margot had painted spruce forests. She had painted them from above — from ridgelines, from aircraft, from the hillsides above the Tanana Valley — and from below, standing among the trees, looking up at the canopy, the dark branches filtering the light into long, dusty shafts that fell to the forest floor like columns, the light structured by the trees, the trees structuring the light, the two of them — the light and the trees — engaged in the same dialogue that the water and the channel were engaged in, the same conversation between the moving and the fixed, the same negotiation that produced the landscape.

She had painted a spruce forest in winter once, the trees black against the snow, the snow blue in the shadow and white in the sun, and the painting had been austere and beautiful and cold, the color reduced to two — black and white, with blue as the only warmth, and the warmth of the blue was the warmth of shadow, which was the warmth of absence, the warmth of the place where the light did not reach.

He had that painting in the bedroom. It was the last thing he saw before he turned off the light at night and the first thing he saw when he woke in the morning, and he did not look at it, did not see it, because it had become part of the room, part of the furniture, part of the background of his life, the way the contour lines on a familiar map became invisible, the way the reference frame became transparent when you used it long enough.

The plane descended toward Fairbanks. The university appeared on the ridge. The Chena River appeared, brown and winding through the town. The houses and the roads and the strip malls and the parking lots appeared, the infrastructure of human habitation laid over the landscape like a transparent overlay on a map, the culture superimposed on the terrain, the human grid superimposed on the natural one.

Carl landed at the general aviation side, the same runway they had departed from fifteen days ago, the tarmac the same, the hangars the same, the parking lot the same. The familiar world, the measured world, the world of roads and addresses and coordinates that had been determined long ago and that did not need to be re-determined, the world where every position was known, where every distance had been measured, where the map was complete and the territory was fully covered and there was nothing left to survey except the one thing that could not be surveyed, the interior landscape, the unmapped territory of loss and memory and the question of what came next.

They unloaded the plane. Silas shook Carl's hand.

"Thank you," Silas said.

"Same as always," Carl said. Which was not true. It was the last time, and they both knew it was the last time, and Carl's way of acknowledging the last time was to say that it was the same as always, because sameness was a form of respect, a refusal to sentimentalize, a way of honoring the routine that had defined their professional relationship for twenty years, the routine of flight and landing and equipment and departure, the loop that had been flown and re-flown hundreds of times and that was now, with this landing, closed.

Silas carried the theodolite case to his truck. He set it on the passenger seat. He went back for the duffels. Jin was standing by the hangar with his own bags, his phone in his hand, checking for signal, reconnecting to the world of data and messages and the continuous stream of information that the field had interrupted.

"I fly back to Anchorage tomorrow," Jin said. "Ruth wants me in the office Monday."

"I'll send you a copy of the notebook when I've finished the computations. You can start building the GIS database."

"And your map."

"My map will take longer."

Jin put the phone in his pocket. He looked at Silas with the direct, uncomplicated gaze that Silas had come to appreciate over fifteen days, the gaze of a person who said what he meant and asked what he wanted to know and did not decorate the communication with qualifiers and circumlocutions.

"Thank you," Jin said. "For the field experience. For the — " He paused. "For showing me where the data comes from."

"The data comes from the ground," Silas said. "The ground is always there. The data is what we take from it."

"And the map is what we give back."

Silas looked at him. The sentence was unexpectedly precise, and the precision was the precision of someone who had understood something, not just intellectually but experientially, the understanding that came from fifteen days on the ground with the instruments and the notebooks and the terrain.

"Yes," Silas said. "The map is what we give back."

They shook hands. Jin took his bags and walked to the terminal to arrange a ride to the Bridgewater. Silas loaded the truck and drove home.

The house was as he had left it. The door was locked. The mail was piled inside the door — fifteen days of mail, mostly catalogs and utility bills and a letter from USGS human resources about his retirement benefits. The house smelled of dust and the particular staleness of a closed space in summer, the air warm and still. He opened the windows. He carried the equipment inside and set it in the study. He set the theodolite case on the desk. He set the field notebook beside it.

He stood in the study and looked at the equipment and the notebook and the vellum tubes and the Rapidograph pens. The map was in there, somewhere in the data, in the numbers, in the angles and distances and elevations that he had recorded over fifteen days. The map was waiting to be drawn, the way a sculpture was waiting in the stone, the way a painting was waiting in the pigment, the form implicit in the material, needing only the hand and the eye and the judgment to bring it out.

He would begin tomorrow. He would begin with the data reduction, the computation of the final positions, the adjustment of the traverse, the plotting of the stations on the base sheet. Then the contouring, the interpolation, the drawing. Then the inking. Then the lettering. Then the legend.

The legend. The explanation of the symbols. The key.

He walked down the hall. He passed the closed door. He stopped.

The door was white. The knob was brass. The door was shut. Behind it was Margot's studio. Behind it was the easel and the unfinished painting and the brushes and the journals and the turpentine and the linseed oil and the accumulated material of a thirty-five-year painting practice, the material that Margot had left behind the way the survey left behind flagging tape and rebar stakes, the physical evidence of a presence that had departed.

He put his hand on the knob. The brass was cool. He stood there for ten seconds, twenty seconds, thirty seconds, his hand on the knob, the door closed, the studio behind it.

He took his hand off the knob. He walked to the kitchen. He made instant coffee. He drank it standing at the window, looking at the yard, at the birch trees, at Margot's untended garden beds, at the evening light of Fairbanks in June, the same light that had illuminated the valley, the same sun that had circled the horizon without setting, the same long, level, unsparing light that revealed everything and hid nothing and asked nothing and answered nothing and simply was, the way the terrain was, the way the map would be.

He finished the coffee. He went to bed. He slept.

In the study, the field notebook sat beside the theodolite case, closed, the elastic band around it, the pencil in the spine. Inside the notebook, between the station data and the cross-section measurements, between the angles and the distances and the elevations, were the other observations — the color of the rocks at two in the morning, the sketch from the ridge, the paragraphs about Margot, the things that were not data. They were in the notebook now, part of the record, inseparable from the measurements, the personal mixed with the professional, the memoir mixed with the manifest, and the notebook did not distinguish between them, the waterproof pages holding both with the same impartial fidelity, the same indifference to category, the same refusal to decide what was data and what was not.

The map would have to decide. The map would have to choose. The projection would have to sacrifice one thing to preserve another. That was what projections did. That was the mathematics. That was the rule.

But the legend — the legend was not mathematics. The legend was language. The legend was the place where the cartographer spoke to the reader in words, not in symbols, and said: this is what the symbols mean. This is what the map shows. This is what I chose to preserve and this is what I chose to sacrifice and this is why.

The legend was the key. The legend was the confession. The legend was the map's acknowledgment of its own distortion, its own incompleteness, its own necessary and unavoidable projection.

He would draw the map. He would write the legend.

He did not know yet what the legend would say.