Features – Dutton Cliff

Dutton Cliff – Prominent Geological Features of Crater Lake National Park

 #8 on the map – southeast side of the lake



Dutton Cliff and Phantom Ship. The triangular cliff in the center of the picture is the filling of a vent, possibly the oldest on Mount Mazama. From this, the Phantom Cone was built, of which Phantom Ship is part. The lakeward dips of the lavas and breccias of this cone are clearly shown. After extinction, the Phantom Cone was eroded and then buried by flows from the main vents of Mount Mazama. Note unconformity on the east (left) side between the Phantom and Mazama lavas. A second unconformity, among the Mazama flows, appears higher up the cliff. Thin glacial deposits occur at this horizon, and water seeps issue from them. (Photograph by U. S. Army Air Corps.)

 No part of the walls of Crater Lake is more impressive than the tremendous Dutton Cliff, which rises almost 2000 feet above the water. Here the somber lava flows are separated by brown and brick-red layers, mostly a few feet thick though reaching a maximum thickness of more than 80 feet, which seem at first sight to be coarse tuff breccias. Careful study shows that all but a few of they brighter layers are the slaggy, autobrecciated tops and bottoms of the flows themselves. It is enough to see how the laws grade imperceptibly into the breccias and to note how they send irregular fingers upward into …. [The Main Andesite Cone of Mazama: Interbedded Andesitic Pyroclastic Rocks, 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