FC

Earth-orbit gateway station

Highreach

A spinning wheel over the turning Earth, tiered by function, where a ship's crew climb out of the noise into the quiet and find that the quiet is where the decisions are. The dock levels give way to embassy decks, and the embassy decks give way to the Survey's floor, which flies no flags at all.

Operator
Open Reach Survey home berth; Earth chancery and Directorate above it
Series
Wide Sky
Drawn as
As it stands through the Wide Sky trilogy, ~2312–2316.
Sheet 1 Ring plan — looking down, throat side to the top 8 rings · 27 sealable sectors
Refit cradles — Yard rings · dock boundary · published Yard gate and cradle rail — Yard rings · dock boundary · published Yard dorm and shipwrights' hall — Yard rings · ring boundary · published R1 Freight locks and the rail above them — Freight ring · dock boundary · published Cargo hall, spinward arc — Freight ring · dock boundary · published Chandlery and bond — Freight ring · ring boundary · fixed R2 Long visitor berths — Visitor ring · dock boundary · published Ring boats and boat gate — Visitor ring · dock boundary · published Transit heads — Visitor ring · service isolation · published R3 Main concourse — Dock levels · ring boundary · published Junction plaza and the ledger wall — Dock levels · ring boundary · published Arrival ramps and muster — Dock levels · dock boundary · published Gate four, survey lane — Dock levels · dock boundary · published R4 Embassy row — Embassy decks · bloc doors · published Riding lights gallery — Embassy decks · ring boundary · published R5 Chancery — Chancery ring · bloc doors · published Hearing room and south gallery — Chancery ring · ring boundary · published Dais — Chancery ring · ring boundary · published R6 Survey operations floor — Survey ring · ring boundary · published The corridor of photographs — Survey ring · ring boundary · published Renwick's office — Survey ring · ring boundary · published Assessments office and metrology loft — Survey ring · ring boundary · published Muster room — Survey ring · ring boundary · published Secure store and vault — Survey ring · core pressure doors · published R7 Directorate floor — Directorate ring · core pressure doors · published Drafting room — Directorate ring · ring boundary · published Closed dock — Directorate ring · dock boundary · published R8 CORE THROAT
Sheet 2 Section — looking in, showing the vertical stack Core height 210 m
Yard rings · radius 420 m · — places Yard rings · radius 420 m · — places Freight ring · radius 402 m · — places Freight ring · radius 402 m · — places Visitor ring · radius 386 m · — places Visitor ring · radius 386 m · — places Dock levels · radius 370 m · — places Dock levels · radius 370 m · — places Embassy decks · radius 354 m · — places Embassy decks · radius 354 m · — places Chancery ring · radius 340 m · — places Chancery ring · radius 340 m · — places Survey ring · radius 324 m · — places Survey ring · radius 324 m · — places Directorate ring · radius 300 m · — places Directorate ring · radius 300 m · — places R1R2R3R4R5R6R7R8
Sheet 3 Sector schedule — capacity against occupancy 0 in 0 places
R1 Yard rings
  1. Y-1 Refit cradles dock boundary published S12 B1 ch23

    The third ring is yard cradles. Number-two crane works this arc; the Dawnward's condemned drive came out here.

  2. Y-2 Yard gate and cradle rail dock boundary published S12 B1 ch23
  3. Y-3 Yard dorm and shipwrights' hall ring boundary published S12 B1 ch26
R2 Freight ring
  1. F-1 Freight locks and the rail above them dock boundary published S12 B1 ch02
  2. F-2 Cargo hall, spinward arc dock boundary published S12 B1 ch23

    Canon puts the cargo hall on the spinward arc specifically, which is the only directional statement about any space on this station.

  3. F-3 Chandlery and bond ring boundary fixed spec ruling 2026-08-01
R3 Visitor ring
  1. V-1 Long visitor berths dock boundary published S12 B1 ch24
  2. V-2 Ring boats and boat gate dock boundary published S12 B1 ch02

    Two minutes from the officers' lift.

  3. V-3 Transit heads service isolation published S12 B1 ch02
R4 Dock levels
  1. D-1 Main concourse ring boundary published S12 B1 ch02

    The concourse runs along the gantry glass; there is a noodle stall at the gantry head.

  2. D-2 Junction plaza and the ledger wall ring boundary published S12 B1 ch02

    The public ledger wall stands at full wall height. On this station the ledger is architecture.

  3. D-3 Arrival ramps and muster dock boundary published S12 B1 ch02

    Forty metres from the ramp foot to the transit — the only measured internal distance canon gives for Highreach.

  4. D-4 Gate four, survey lane dock boundary published S12 B1 ch02, ch21
R5 Embassy decks
  1. E-1 Embassy row bloc doors published S12 B1 ch02

    More than one deck. An embassy is described as three decks down from the Survey's floor, which is what fixes this ring below the Survey ring and not beside it.

  2. E-2 Riding lights gallery ring boundary published S12 B1 ch02

    'Below the Survey's floor the embassy decks wore their riding lights.'

R6 Chancery ring
  1. C-1 Chancery bloc doors published S12 B2

    Named in canon; its position in the stack is the drawing's. It sits above the embassy decks and below the Survey's floor because that is the only gap the published order leaves.

  2. C-2 Hearing room and south gallery ring boundary published S12 B1 ch24

    The hearing room is the size of the Dawnward's mess — which is the sort of comparison this trilogy makes about power.

  3. C-3 Dais ring boundary published S12 B1 ch24
R7 Survey ring
  1. S-1 Survey operations floor ring boundary published S12 B1 ch02

    'The embassy decks gave way to the Survey's floor, which flew no flags at all.' The whole trilogy is in that clause.

  2. S-2 The corridor of photographs ring boundary published S12 B1 ch02

    Sixty years of dated crews along one wall.

  3. S-3 Renwick's office ring boundary published S12 B1 ch02

    Pencilled charts, a bottle drawer, and a port that looks out over the embassy decks — which is to say, downward.

  4. S-4 Assessments office and metrology loft ring boundary published S12 B2
  5. S-5 Muster room ring boundary published S12 B1 ch02
  6. S-6 Secure store and vault core pressure doors published S12 B2

    Carries a duty officer.

R8 Directorate ring
  1. G-1 Directorate floor core pressure doors published S12 B1 ch23, ch24

    Three levels up the Survey ring. From here the station falls away ring by ring — the yards and the embassy floors and the long visitor berths, and Earth beyond all of it, turning.

  2. G-2 Drafting room ring boundary published S12 B3 ch03, ch24

    Two decks above the Hollis annex, which is itself two decks under the Survey's operations floor.

  3. G-3 Closed dock dock boundary published S12 B3

    The Directorate's own dock, and it is closed — which is the point of it.

Seal class — what shuts around this volume

  • Ring boundary
  • Bloc doors
  • Core pressure doors
  • Dock boundary
  • Service isolation

Grade of every figure on these sheets

  • published Stated in the books. If a drawing disagrees, the drawing is wrong.
  • derived Arithmetic on published facts; the working is given.
  • fixed Canon was silent here and the drawing decided.

Systems

Spin

published

The wheel turns

Gravity here is rotation and nothing else. Under BF-012's era gate, Highreach belongs to the generation before the seam-tapped deck field, and its wheel is canon as written.

S12 B1 ch18, ch21, ch24

Traffic control

published

Lanes, gates and the outer marker

Ten thousand hulls into ten thousand lanes. Released to the survey lane at gate four; arrivals on lane four with tugs at the outer marker.

  • Approach queue40 minutes deep

S12 B1 ch02, ch21, B2 ch26

The public ledger wall

published

Junction plaza, full wall height

The node-ledger rendered as a public surface. Its security property is authorship and immutability, never secrecy, which is why it can be a wall in a plaza.

S12 B1 ch02

What was checked

The books state distances aboard this ship. The drawing has to produce the same ones or it is wrong — so it is made to, and the working is shown. These run again on every build; a compartment moved by a metre fails them.

  • “The dock levels give way to embassy decks, and the embassy decks give way to the Survey's floor” S12 B1 ch02

    Dock levels R4 at z −20, embassy decks R5 at z +8, Survey ring R7 at z +56. Ascending in the published order with the chancery ring between.

  • “An embassy is three decks down from the Survey's floor” S12 B1 ch02, B2 ch02

    R7 → R6 → R5 is three ring levels down from the Survey ring to the embassy decks.

  • “The Directorate is three levels up the Survey ring” S12 B1 ch23

    R7 at z +56 to R8 at z +84 — 28 m, drawn as three internal levels within the Directorate stack.

  • “From the Directorate the station falls away ring by ring — the yards, the embassy floors, the long visitor berths” S12 B1 ch24

    R8 is the topmost ring; R1 yards, R3 visitor berths and R5 embassy decks all lie below it and are all visible looking down a tapering stack.

What this drawing does not decide

A blueprint that answered everything would be inventing. These are the things canon has not fixed and this sheet deliberately leaves for a book to claim.

  • Every radius, ring width and z on this sheet is the drawing's. Canon fixes the ORDER of the stack and never a dimension.
  • The spin rate and the gravity it produces are not stated anywhere and are not supplied here.
  • Ring count. Canon names the freight, Survey, chancery, Directorate, visitor and yard rings plus the embassy decks and the dock levels, and says a third ring is yard cradles. Whether that is eight rings or eight of a larger number is not established.
  • The chancery ring's position in the stack is inferred from the gap the published order leaves, not stated.
  • The hub, the spokes and the transit system that must connect these rings are drawn as a core because a wheel requires one; canon describes lifts, transits and ring boats but never the structure carrying them.
  • Sector arcs are the drawing's throughout. What is in each sector is published; where it sits around the ring is not, except the cargo hall, which canon puts on the spinward arc.

Compiled from

  • S12 B1 Wide Sky — chapters 02, 18, 21, 23, 24, 26
  • S12 B2 The Widened Road — chapters 02, 13, 26
  • S12 B3 The Closing Sky — chapters 03, 24
  • universe-state/locations/orbital/highreach.md