Mount Rainier

Subject: World Geography | Volcanology

UPSC Notes

Mount Rainier is a prominent active volcano located in Washington State in the northwestern United States.

It is part of the Cascade Range.

Geographical characteristics

  • Elevation: Approximately 4,392 metres.

  • Location: Washington State, USA.

  • Type: Stratovolcano.

  • Part of the Cascade volcanic arc.

  • Covered with extensive glaciers.

  • Highest peak in the Cascade Range.

Geological significance

Mount Rainier is a potentially dangerous active volcano.

Major hazards include:

  • Volcanic eruptions.

  • Lahars.

  • Landslides.

  • Ashfall.

  • Debris flows.

What is a Lahar?

A lahar is a rapidly moving mixture of volcanic debris, water and mud that flows down volcanic slopes and river valleys.

It can travel long distances and cause significant destruction.

Other important facts

  • Mount Rainier National Park was established in 1899.

  • The volcano is monitored by the United States Geological Survey (USGS).

  • Its glaciers and volcanic activity create significant lahar risks.

Key Pointers

  • Country: United States.

  • State: Washington.

  • Mountain range: Cascade Range.

  • Height: 4,392 metres.

  • Volcano type: Stratovolcano.

  • Major hazard: Lahars.

  • Monitoring agency: USGS.

  • National park established: 1899.