Port Maw

Port Maw is the naval capital of the Gothic Sector, a hollow artificial planetoid named for its 500-kilometre aperture.

The 60th Expedition discovered the planetoid in the Coronid Deeps. Terra subsequently ordered a northern fleet fortress to be built within it. Traitor officers later turned its panopticon against the loyalist forces then assembling there.

During the Gothic War, the station was defended by mines and forts and remained impregnable. Chaos nonetheless blockaded it for almost the whole of the campaign, and its standing as the sector’s principal naval base rests on that combination of fortification and prolonged siege.