Hello again Alex - Game McGimsey, a long-time geologist with AVO, confirms for me that Bona is not a volcano. (I remembered deleting Bona from our list some time ago, but not why). Thank you, Cheryl -------- Alex Gimarc wrote: Howdy - Do you guys have an estimate of ages of Hayes Volcano north of Mount Spurr and Mount Bona - Cleveland? Given the Bona - Cleveland volcano is associated with the Wrangell volcano field, I am guessing it is in the range of 5 million years or so, but can't find anything with an actual number / estimate. I cannot find anything about Hayes, but given its proximity to Spurr, I would guess that it is around the same age. Thanks for any suggestions. Cheers - -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050