Geomorphology and surface geology of Mount St. Helens volcano

Simona Gabrielli* (Corresponding Author), Matteo Spagnolo, L. De Siena

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
12 Downloads (Pure)


Mount St. Helens is a stratovolcano of the Cascadia volcanic arc well known worldwide for its volcanic collapse and eruption in 1980, which caused considerable destruction and changed the geomorphology of the volcano and of a considerable portion of its surroundings. This paper presents a geomorphology and surface-geology map of both the wider Mount St. Helens, Washington (USA), at the 1:50,000 scale, and of its crater, at the 1:25,000 scale. The map is obtained from the interpretation of two high-resolution, air-borne acquired, digital terrain models, LiDAR dataset, combined with Google Earth imaging, geological information and field surveys. The geomorphology of the area is largely dominated by landforms connected with the blast of 1980 and the dome extrusion of 2004, which also affected the shape of the main glacier in the crater.
Original languageEnglish
Pages (from-to)585-594
Number of pages11
JournalJournal of Maps
Issue number2
Early online date29 Jul 2020
Publication statusPublished - 2020

Bibliographical note

This work has been supported by SAGES (Scottish Alliance for Geosciences Environment and Society) Small Grants Scheme and the Jack Kleinman Grant for Volcano Research to travel to the US and perform fieldwork necessary for the realization and interpretation of the map.

Thanks to the Associate Editor, Prof. Knight and the reviewers Dr. Heike Apps, Mr. Adolfo Quesada and Dr. Guido Ventura for their constructive comments and suggestions. Thanks to Alexa Van Eaton, J. J. Major and R. Waitt for their suggestions and Corrado Palucci for fieldwork assistance.


  • Mount St. Helens
  • geomorphology
  • surficial geology
  • geomorphological mapping
  • volcanic geomorphology
  • Helens
  • Mount St
  • MAP


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