Features – Crater Peak

Crater Peak – Prominent Geological Features of Crater Lake National Park

#5 on the map – directly south of Crater Lake

crater-peak
An early geological map with Crater Peak (at bottom center) and Crater lake, The Geology of Crater Lake National Park, Oregon (1942) by Howell Williams

This familiar landmark on the south slope of Mount Mazama rises 750 feet above the undulating crest of Vidae Ridge, a short distance from Tututni Pass. It rests upon and is surrounded by glacial drift. The cone itself has not been modified by glaciation and is as well preserved as any within the park. Most of it consists of lapilli and bombs of red, brown, and black porphyritic basaltic andesite like that which makes up the cone of Wizard Island. Few fragments exceed even 3 inches across, though occasional bombs about a foot in diameter are also present. Some of the ejecta are angular and have smooth, plane surfaces. Probably these were blown out when solid. Others are sub-rounded and scoriaceous and must have been erupted in a viscous state. With these are many lumps of old andesite and dacite torn from the underlying basement. Much brick-red ash was also blown from Crater Peak and may be seen as far as 2 miles from the cone … [The Parasitic Scoria Cones of Mount Mazama: Crater Peak, The Geology of Crater Lake National Park, Oregon (1942) by Howell Williams]

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Crater Lake National Park

Prominent Geological Features Map


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  1. Features – Applegate Peak
  2. Features – Bald Crater
  3. Features – Cloudcap
  4. Features – Crater Lake Caldera
  5. Features – Crater Peak
  6. Features – Desert Cone
  7. Features – Devils Backbone
  8. Features – Dutton Cliff
  9. Features – Eagle Crags
  10. Features – Garfield Peak
  11. Features – Godfrey Glen and Colonnades
  12. Features – Grouse Hill
  13. Features – Hillman Peak
  14. Features – Kerr Notch
  15. Features – Llao Rock
  16. Features – Llaos Hallway
  17. Features – Maklaks Crater (Diller Cone)
  18. Features – Mazama Rock
  19. Features – Mount Scott
  20. Features – Palisades
  21. Features – Phantom Ship
  22. Features – The Pinnacles
  23. Features – Pumice Castle
  24. Features – Pumice Desert
  25. Features – Pumice Point
  26. Features – Red Cone
  27. Features – Redcloud Cliff
  28. Features – Rugged Crest
  29. Features – Scoria Cone
  30. Features – Scott Bluff
  31. Features – Sentinel Rock
  32. Features – Skell Head
  33. Features – Sun Notch
  34. Features – Timber Crater
  35. Features – Union Peak
  36. Features – The Watchman
  37. Features – Williams Crater (Forgotten Crater)
  38. Features – Wineglass
  39. Features – Wizard Island

Note: the numbers associated with each feature name above correspond to their place on the Custom Google Map