Tussock and shrubs grow in the rubbly path forged by a lahar (volcanic mud flow) from Mt Ruapehu. The heat of volcanic eruptions can melt snow and ice. Meltwater mixes with rocks and soil and sweeps down established channels, destroying all vegetation and anything else along the way.
Te whakamahi i tēnei tūemi
Department of Conservation
Photograph by Herb Christophers
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