CHAPTER SEVEN
THE RIDGE
The prospecting ridge and eastern uplands, early summer 1980
The mining accident happened forty-seven kilometres from Camp One.
Petrov’s convoy consisted of two pressurized rovers, a drilling carrier and a small unmanned hauler. Six people went out. Five came back under their own power.
The sixth came back on a stretcher.
They had been drilling a promising iron-rich formation near a low ridge when the ground beneath the carrier collapsed into a shallow lava tube hidden under regolith.
The vehicle dropped hard on its left side.
A support strut punched through an equipment bay. The cabin remained pressurized, but Lieutenant Alvarez was thrown against a console and broke her leg.
Worse, the drilling carrier blocked the rover route through the cut.
Petrov radioed Camp One.
“Vehicle disabled. One injury. Cabin pressure stable.”
Shaw was in the Arrivals hall when the call came.
“How much oxygen?”
“Thirty-one hours if we shut down the drill systems.”
“Rover?”
“Rear vehicle can return. Front rover cannot pass.”
“Can the injured person be moved?”
A pause.
“Yes. Carefully.”
Shaw looked at Hale.
“Take the rescue rover.”
He was already reaching for his suit bag.
The drive took six hours.
Mars offered no road, only routes gradually beaten into the dust by repeated travel. Navigation markers stood at intervals. Between them, the horizon changed so little that a driver could feel stationary while the odometer climbed.
Hale drove with Nakamura beside him and a military medic in the rear compartment.
They found the convoy under a sky turning violet toward evening.
The drilling carrier leaned into the collapsed ground at an angle that made Hale’s stomach tighten.
Petrov met them outside.
“Alvarez is stable.”
“Good.”
“The carrier is not.”
“Leave it.”
Petrov looked offended.
“That machine weighs eighteen tonnes.”
“It can weigh eighteen tonnes here tomorrow.”
Petrov stared at him for a second.
Then he laughed.
“Practical solution.”
“Works everywhere.”
They transferred Alvarez through connected suit tunnels rather than expose her to a suit change with a broken leg.
The medic splinted her and administered pain medication.
As they prepared to leave, Petrov handed Hale a sample bag.
“What’s this?”
“The reason we were drilling.”
Hale held the dark rock against his suit lamp.
“Worth breaking a leg?”
“Ask me after analysis.”
The analysis justified neither the injury nor the excitement that followed, but it was important.
The formation contained a higher concentration of iron-bearing material than previous cores and trace elements useful for alloying. Nearby samples indicated silica-rich deposits and promising aluminum-bearing minerals.
The ridge became a permanent prospecting site.
Engineers installed a small pressure shelter there, then storage, then power, then a marked rover approach.
The first mining outpost had begun.
The accident also changed policy.
No prospecting convoy would travel beyond twenty kilometres without redundant pressurized transport. Emergency caches were placed along major routes. Navigation beacons appeared. Rescue equipment became standard.
Mars expanded not by drawing lines on maps but by surviving mistakes farther from home.
Alvarez returned to duty after rehabilitation.
Her first trip was back to the ridge.
Petrov met her at the rover bay.
“You do not have to go.”
“I know.”
“You broke your leg there.”
“I remember.”
“Then why?”
She took the sample case from him.
“Because the rock did not.”
Petrov nodded.
“Good answer.”
FOUR HUNDRED CLICKS
The ridge forty-seven kilometres from Camp One solved one problem and created another.
It proved that useful ground existed beyond the routes the colony could support comfortably.
Petrov wanted to go farther.
Shaw did not.
“How far?” she asked.
Petrov placed a finger on the survey map.
“Four hundred kilometres.”
Morel stopped writing.
“Four hundred?”
“Approximately.”
“On Mars, approximately four hundred kilometres is still four hundred kilometres.”
Petrov looked at him.
“That is why we measure it.”
The orbital surveys had identified a broken upland region far beyond the established prospecting ridge. Spectral returns suggested unusually iron-rich material exposed along old impact fractures. Radar data also hinted at buried ice in protected ground nearby.
None of that meant ore.
A useful signal from orbit could become worthless dust under a drill.
But the ridge had changed the question. The miners no longer asked whether Mars contained material they could process. They asked where the concentrations became good enough to justify permanent machinery.
Shaw studied the route.
There would be no six-hour rescue drive this time.
At normal rover speeds, with stops for navigation, inspection and power management, a return journey could consume days. A failed pressure vessel halfway out would not be an inconvenience. It would be a deadline.
“What do you need?”
Petrov had prepared the answer before entering the room.
“Three pressurized vehicles. One unmanned cargo carrier. Two emergency caches placed in advance. Portable reactor. Drilling package. Water recovery unit. Atmospheric processor. Two habitation modules.”
Morel looked up.
“That sounds less like prospecting.”
“It is.”
“What is it?”
Petrov tapped the map again.
“A place from which we do not have to come home every night.”
The expedition left in stages.
Unmanned carriers went first, crawling slowly over surveyed ground and dropping sealed emergency caches along the route. Each cache held oxygen, water, batteries, suit consumables, medical supplies, thermal blankets, navigation equipment and enough food to make waiting possible.
Then came the crew.
Eight people.
Petrov and Alvarez led the geological team. Cole brought the drilling equipment. Two vehicle specialists, an electrical engineer, a life-support technician and a military medic completed the group.
They drove east from Camp One until the familiar navigation beacons disappeared behind them.
Then they kept driving.
Four hundred kilometres on Earth could be an afternoon.
On Mars it became geography.
The rovers crossed shallow crater floors, skirted fields of broken rock and climbed long grades where the horizon seemed to retreat at exactly the speed they approached it. Dust collected against wheel hubs. Suspension temperatures were checked at every halt. Every pressure reading mattered.
They slept inside the vehicles.
They ate from heated packets.
They spoke less on the second day.
On the third, Alvarez saw the dark line of the target escarpment through the forward glass.
“There.”
Petrov leaned toward the window.
“That?”
“That.”
Cole looked at the odometer.
“Three hundred ninety-six.”
Petrov sat back.
“Drive four more.”
Nobody laughed.
The first cores were disappointing.
The third set was better.
The fifth gave hope.
The eight changed the expedition.
Cole brought the sample into the temporary pressure shelter and placed it beneath the analysis unit. Petrov watched the numbers settle.
Iron.
Silicates.
Aluminum-bearing phases.
Magnesium.
Nickel and chromium in concentrations that were not spectacular by Earth standards but were suddenly interesting when the alternative was carrying structural material across interplanetary space.
Alvarez ran the test again.
Then a third time.
Petrov waited.
“Well?”
She removed her gloves.
“It is mineable.”
Cole frowned.
“Profitable?”
Alvarez looked around the pressure shelter.
“On Earth? No.”
She pointed upward.
“Here? Ask the launch accountants.”
The buried ice was confirmed the following day.
That decided the matter.
Ore alone could justify returning.
Ore beside accessible water could justify staying.
The order from Camp One arrived after a communications delay.
ESTABLISH TEMPORARY FORWARD SITE.
Petrov read it twice.
Alvarez looked over his shoulder.
“Temporary?”
“Everything on Mars is temporary until somebody bolts it down.”
They bolted it down.
The unmanned carrier unfolded a compact fission power unit beyond the habitation area and buried its cable beneath a shallow regolith trench. Solar panels went up as secondary power. The water plant drilled into ice-bearing ground, melted what it recovered, filtered it and fed storage tanks inside an insulated service module.
The air system was deliberately redundant.
Water electrolysis supplied oxygen. Carbon dioxide scrubbers cleaned the habitat atmosphere. A small atmospheric-processing unit pulled Martian air through compressors and separation equipment, recovering useful gases while the imported buffer-gas reserve remained sealed for emergencies.
Two cylindrical habitation modules were joined by a short pressure tunnel.
Eight bunks.
A galley barely deserving the word.
A medical locker.
A communications rack.
A toilet everyone hated.
A workbench everyone loved.
Outside stood suit-service connections where explorers could refill breathing supplies, replace scrubber cartridges and check seals without consuming the outpost’s internal air. Heavy charging cables ran to the vehicle bay. Rover batteries could be brought back slowly from near-empty while the reactor carried the life-support load.
For the first time, a vehicle could leave Camp One, travel four hundred kilometres across Mars and arrive somewhere capable of giving it power, water, oxygen and a bed.
Morel saw the first transmitted image six hours after it was taken.
The photograph showed two habitat cylinders, an equipment shelter, antenna mast, parked rovers and a row of solar panels under a sky the colour of old brick.
He stared at it.
Shaw came up beside him.
“That’s it?”
“That is apparently civilization.”
“It looks like cargo.”
“Camp One looked like cargo.”
She considered that.
“Fair.”
The site had no romantic name.
Officially it was Forward Prospecting Outpost One.
The miners called it Four Hundred.
“Where’s Petrov?”
“Four Hundred.”
“When does the drilling carrier come back?”
“From Four Hundred?”
“Send the spare rover to Four Hundred.”
The phrase entered ordinary speech because four hundred kilometres was no longer an abstract distance on a map.
It had a door at the end of it.
The first extraction trench was small.
Nobody called it a mine yet.
The crew removed only enough material to test excavation rates, crushing, separation and transport. Most of the useful concentrate remained at the outpost in sealed bins. A few hundred kilograms went back to Camp One for the Mechanical Dome.
Li stood beside the returned containers.
“This came from four hundred kilometres away?”
Petrov nodded.
Li looked offended.
“I could have made terrible metal from rocks much closer.”
“This is better rock.”
“How much better?”
Petrov handed him the analysis.
Li read it.
His expression changed.
“Oh.”
Petrov smiled.
“Yes.”
The outpost altered the map more than its size suggested.
Until then, Camp One had been the settlement and everything else had been an excursion from it.
Four Hundred was different.
It could survive on its own for limited periods.
It made its own power.
It recovered its own water.
It maintained breathable air.
It serviced suits.
It charged vehicles.
People slept there, worked there and woke there with Camp One far beyond the horizon.
Mars had acquired a second inhabited point.
There were eight bunks, a reactor, a water plant, a drill, two habitation cylinders and a handwritten notice beside the inner hatch:
CHECK YOUR SUIT BEFORE YOU LEAVE.
Alvarez had written it.
Petrov added beneath it:
AND YOUR ROVER.
Cole added:
AND YOUR COFFEE.
That was the first decoration at Four Hundred.
When Shaw received the monthly operations map, she found a new symbol four hundred kilometres from the cluster around Camp One.
A tiny square.
Nothing more.
She touched it with one finger.
Hale stood beside her.
“Long way from home.”
Shaw looked at the little square.
“Not anymore.”