Exile Hill

Exile Hill is a remote volcanic hill in northwestern British Columbia within Mount Edziza Provincial Park and the broader Mount Edziza volcanic complex. Rising 1,890 metres above the Tahltan Highland near Mess Creek valley, it preserves evidence of two eruptive phases: older basalt of the 4.4-million-year-old Nido Formation and younger trachyte-rich rocks of the 3.1-million-year-old Spectrum Formation. It is the only known eruptive centre in the complex active during both periods. Its geology includes remnants of an early cinder cone, thick basalt flows, gravel derived from nearby volcanic sources, a trachyte plug dome, explosive breccia, and lava and pyroclastic deposits that illuminate the complex's long volcanic history.

British Columbia · Canada