Glacier One is a Space Pirate outpost on Tallon IV. The facility is located within the Phendrana Drifts region, because the cold temperature makes containment of Metroids more manageable. The facilities contain a holographic Observatory, and two Research Labs: Hydra and Aether. There is also an unusually strong Metroid located in Hydra known as the "Metroid: Alpha Type", however it is completely unrelated to the true Alpha Metroids from SR388.
The fate of the base after Samus' mission is unknown. Unlike other Pirate bases in the series, Glacier One is never seen being completely destroyed by Samus. A scan in Corruption states that Tallon IV's ecology is returning to normal however, indicating that the Space Pirates have abandoned the planet some time between the two games.
- Glacial Wastes
- "Research outpost Glacier One in Phendrana Drifts region of Tallon IV's mountains is operating at 85% capacity. Sub-zero temperatures have made the Metroids sluggish and easy to control, even those well into Phazon infusion cycles. Cold containment status are sufficient for the juveniles, but some of the larger Metroids have been moved to quarantine caves for safety purposes. Security doors remain an issue, as malfunctions due to ice occur everyday. Large predators in the wastes are also a concern, as they continue to kill personnel and breach secure areas. Unfortunately, it has become clear that our containment teams cannot neutralize all of them without a vast increase of munitions and soldiers."