Map of volcanic hazards of Mount Mazama, Oregon, United States of America.
  Lava and pyroclastic flows, ejectas, rock fall
  Lahars
  Volcanic ash
  Crater Lake National Park boundary
* Lakes, rivers, borders: [www.openstreetmap.fr OpenStreetMap] (CC-BY-SA-2.0)
Topography and relief: earthdata.nasa.gov (public domain) with ASTER data. ASTER GDEM is a product of METI and NASA
Volcanic hazards data: Digital Geologic and Volcanic Hazards Map for Crater Lake National Park and Vicinity, Oregon (NPS, GRD, GRI, CRLA, CLHZ digital map). National Park Service Geologic Resources Inventory Program, Lakewood, CO (2009). Retrieved on 2019-11-19.
Sémhur