Linked from
The 10 pages that link to Cascade Volcanoes, each with the reason it gives.
Mount RainierNarrower topic: Rainier is one of the arc’s prominent volcanoes.
Mount HoodNarrower topic: Mount Hood is one volcano in this subduction-related arc.
Mount ShastaNarrower topic: Shasta is one of the arc’s largest and southernmost major volcanoes.
Glacier PeakNarrower topic: Glacier Peak is one of the arc’s active volcanoes.