From Destinypedia, the Destiny wiki
Location:
Dreadnaught, Saturn's Rings
Enemy Factions:
Hidden Swarm
Connecting Areas:
BasilicaThe Crux
Area Type:
Private
Public Events:
N/A
Patrol Beacons:
Portico is a location within the Dreadnaught orbiting Saturn. It is accessible during the King's Fall Raid.