All 168 episodes of Star Trek: Voyager, plotted across the Milky Way from the Caretaker's array to Earth. This version starts the trip 75,000 ly from Earth, the figure on Memory Alpha's 2371 page. From there, the canon numbers leave almost no slack in seasons 1–4, so the early detours shrink to the few light years seen on screen. The exact track is an estimate. Compare the 70,000 ly version.
Voyager covers about 85,000 ly to close a 75,000 ly gap. Tap a row to jump to that point in the trip.
Who held the Delta Quadrant
The Borg: one continuous heartland, plus a network that reaches everywhere. Memory Alpha describes Borg space as a vast territory of thousands of solar systems and millions of vessels. In "Scorpion" there is no way around it, only a narrow corridor through it. The Nekrit Expanse was its farthest known border, and it took Kes's 9,500 ly push to clear it. So the core is one block, not islands. After leaving it, though, Voyager met the Borg more often, not less. That's the transwarp network: six hubs and thousands of exit apertures in all four quadrants, with any point reachable in minutes.
Why everyone else survived. Canon gives three reasons:
The Borg are picky. They assess each species and take only those that add to their "perfection". They ignore the rest unless it becomes a threat. The Kazon were rejected as unworthy, and the Brunali only drew attention when they had technology worth taking.
They were busy. The war with Species 8472 was costly, and Unimatrix Zero's resistance came later.
The quadrant is enormous. It holds thousands of species. The network made the Borg a threat everywhere without occupying everywhere.
How big is a power? Canon scale outside Voyager
Canon rarely gives sizes, so the zones are scaled against the few figures that exist. All are from Memory Alpha.
Federation, 8,000 ly across. Picard's figure in First Contact: over 150 worlds spread across eight thousand light years. Memory Alpha notes it might mean volume instead, but the map reads it as distance.
Dominion, the largest zone near Earth. The Founders rule "hundreds of races", which Memory Alpha reads as substantially larger than the Federation. It lies 40,000–50,000 ly from the core, past the wormhole's Gamma terminus.
Klingon and Romulan empires, drawn at about the Federation's scale. No figures are given, but they are its peers. The Klingons once occupied a fifth of Federation space, in 2256–57.
Cardassian Union, smaller. It "never appeared to match the Federation in sheer scale".
Ferengi Alliance, smaller still. Ferenginar is only about 60 ly from Bajor.
Capitals sit close together. Qo'noS is under about 100 ly from Earth, and Cardassia Prime five from Bajor. The great powers meet at a crowded corner and spread outward from it, so the circles show territory, not where capitals are.
For comparison in the Delta Quadrant: at its height, the Krenim Imperium spanned five thousand parsecs, about 16,000 ly. Borg space holds thousands of systems, so it is drawn larger than the Federation.
Sizing the Delta zones. Each zone centres on Voyager's track during that species' episodes. Its radius is the larger of two figures: half the warp distance Voyager flew while in contact, or a floor from what canon says about the species:
Where episodes say Voyager skirted a border, as in "Deadlock" and "Nightingale", the zone is set off to one side of the track. When a species appears in two far-apart places, it gets two zones.
The transwarp network vs. the "Endgame" map
In "Endgame", Seven's astrometrics display shows the Borg transwarp network as cyan conduits across the whole galaxy, with four hubs. Memory Alpha notes this is four of the six hubs mentioned in dialogue, one in each quadrant. Dialogue gives thousands of exits in all four quadrants. The cyan layer here follows that layout: one hub per quadrant, plus a generated sample of the conduits. Comparing it with the old version of this map and with the on-screen graphic:
Scope. The old map showed only the hub Voyager used and a few Borg sightings, which badly understated the network. The graphic shows the Borg can reach practically anywhere, including just outside Federation space. That is how the Battle of Sector 001 and the aperture less than a light year from Earth come about.
Hub placement. In the graphic, the hubs sit roughly a third to four-fifths of the way out from the core. Here the Delta hub, Grid 986, sits right at the core's edge, because the dialogue puts it about 30,000 ly from Earth. The graphic is a schematic, so the dialogue wins, but the two disagree by tens of thousands of light years. The other three hubs follow the graphic.
A canon contradiction. Admiral Janeway says there are only exit apertures in the Alpha Quadrant, yet the graphic shows a hub there. Memory Alpha flags this too. The map follows the graphic and labels it.
Orientation. The frame shows quadrant boundaries but no labels, so its rotation can't be matched exactly. Memory Alpha's own quadrant diagram puts Alpha upper-left. This map puts Earth at the bottom, which is the same arrangement rotated a quarter turn.
After "Endgame". Voyager's torpedoes collapse the network, so at the last episode the cyan layer fades and is marked destroyed.
How the route is built
The start: Memory Alpha's 2371 page says both ships were thrown seventy-five thousand light years. A nebula near Ocampa is also given as 75,000 ly from Federation space. The ship article's 70,000 ly is used in the other version.
Turning years into light years: Janeway's projection of 75 years over 75,000 ly is a tidy 1,000 ly per year. At that pace, Night's "two years" is exactly the 2,000 ly closer on the 2375 page, and Timeless's "nearly ten years" matches its 10,000 ly.
Seasons 1–4 run almost straight. In "One", Janeway says they've come 15,000 ly, at a nebula 60,000 ly from Earth. From 75,000 ly out, that means every light year flown was a light year closer. So detours here can only be as small as the ones mentioned on screen: 0.4 ly to the Demon planet, 3.8 ly to the Hirogen relay. Where no figure is given, a stop is drawn as a 3–20 ly side trip. Those add a few hundred light years in total, inside the rounding of "15,000".
Seasons 4–6 then have too much distance. At 1,000 ly per year, the shortcuts after "One" net 30,500 ly closer. "Pathfinder" finds the ship just over 30,000 ly out, which needs only about 29,400. The map books the extra 1,100 ly as ground lost avoiding the Borg. Janeway puts that at two years in "Dark Frontier".
Shortcuts keep their stated length. Dark Frontier's coil covers 20,000 ly but saves fifteen years, so its path curves off the homeward line.
Later stretches use the season 1–4 pace of about 60 ly per episode, fit between the fixes from "Pathfinder" (just over 30,000 ly), "Live Fast and Prosper" (Telsius Prime, 30,342 ly), and Grid 986 (30,000 ly). The exact zigzags are generated, not canon.
Q's shortcut in "Q2" is a route that "Endgame" arrives before it could pay off, so the map adds no jump for it.
The galaxy: Earth sits on the Alpha/Beta line about 30,000 ly from the core, Memory Alpha's figure for Federation space. That puts Grid 986, just over 30,000 ly from Earth, right at the edge of the galactic core. A 75,000 ly start puts the Caretaker's array near the far rim of the Delta Quadrant. The spiral arms are illustrative, and landmarks are placed by episode order.
Borg reach
One category, two levels of evidence. Borg-controlled territory is now one category, "Borg reach". The bright, solid glows are canon: the heartland Voyager crossed in "Scorpion", and Species 116's assimilated world. The fading circles around each transwarp hub are inferred. The Grid 986 circle is anchored by the 47+ cubes that canon puts there. The Unicomplex counts as Borg reach too, but canon never says where it is, so it isn't drawn.
Held core (dashed ring, 2,500 ly). Hubs are the network's most valuable assets. Memory Alpha says the Grid 986 hub's nebula held at least 47 cubes. The map assumes every hub is guarded the same way.
Raiding reach (fading circle, 14,000 ly). This is roughly how far conduits fan out from each hub on the "Endgame" map before thinning out. Within it, a cube can arrive in minutes, so any species worth assimilating is exposed.
Checking it against canon Borg sightings (green ✕):
Delta hub: strong support. Almost every Borg encounter in seasons 6–7 falls inside it. These include the Borg children's derelict cube, the Brunali homeworld under a light year from an aperture, Unimatrix Zero, the debris in "Imperfection", and Grid 986 itself.
Beta hub: moderate support. System J-25 sits about 7,000 ly from Federation space, where Q first showed the Enterprise the Borg in 2365. That falls within this hub's reach on the map, but J-25's direction is never given, so the placement is schematic.
Alpha hub: contested. The graphic shows a hub here. Admiral Janeway says the Alpha Quadrant has only exit apertures.
Gamma hub: weak support. No Borg activity there is mentioned in DS9 or the Dominion stories. The Dominion may simply never have been judged worth the effort, or the hub was far from Dominion space.
Earth's own encounters fall outside every reach circle. These are the Neutral Zone outposts (2364), Wolf 359 (2367) and the Battle of Sector 001 (2373). They came by long warp journeys or single conduit exits like the one under a light year from Earth, not from a nearby hub. That fits the canon picture of the Alpha Quadrant as a raiding target rather than held territory.
What it suggests. The Borg may hold four or more fortified islands, not just one Delta Quadrant heartland, each with a raiding radius larger than the Federation. Even so, these zones together cover well under half the galaxy, consistent with the Borg being selective rather than everywhere at once. The two hubs missing from the "Endgame" map would add more, in unknown places.