How to Access The Lock Location in Starfield after Finishing Key Missions

To access The Lock, complete the Deep Cover and Rook Meets King missions to join the Crimson Fleet. Then do the Echoes of the Past mission.
Head to the planet Suvorov and go through the ice path to reach The Lock's exterior.
Have Crimson Fleet leader Delgado open the door with his ID card.
Inside, there are some points of interest for the mission, but no noteworthy loot.
You can return to explore The Lock after finishing Echoes of the Past since enemies respawn.

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