The tall Mount McLoughlin is one of Oregon's more than a dozen volcanoes. Although it has been thoroughly carved by glaciers, this volcano is not extinct but merely dormant, and could throetically erupt again in the distant future. Its last eruption occurred approximately 25,000 years ago, which produced blocky andesite lava flows that flowed towards the southwest of its summit. This video will discuss Mount McLoughlin which in some ways looks similar to Mount Fuji. Thumbnail Photo Credit: This work "MtMcLoughlin2", is a derivative of a photo (resized, cropped, text overlay, overlaid with GeologyHub made graphics (the image border & the GeologyHub logo)) from "Mt. McLoughlin.jpg", by: David Wood, Holzwerk, 2017, Posted on Flickr, Flickr account link: https://www.flickr.com/photos/24708362@N00/, Photo link: https://www.flickr.com/photos/24708362@N00/34386855031/, CC BY 2.0. "MtMcLoughlin2" is used & licensed under CC BY 2.0 by Youtube.com/GeologyHub If you would like to support this channel, consider using one of the following links: (Patreon: http://patreon.com/geologyhub) (YouTube membership: https://www.youtube.com/channel/UCYeGh5VML5XPr5jYnzh3J6g/join) (Gemstone & Mineral Etsy store: http://prospectingarizona.etsy.com) (GeologyHub Merch Etsy store: http://geologyhub.etsy.com) Google Earth imagery used in this video: ©Google & Data Providers This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes. Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image (and this list does not include every license used in this video and/or thumbnail image): Public Domain: https://creativecommons.org/publicdomain/mark/1.0/ CC BY 2.0: https://creativecommons.org/licenses/by/2.0/legalcode Sources/Citations: [1] U.S. Geological Survey 0:00 Mount McLoughlin 1:19 Geologic Setting 1:35 1st Eruptive Period 2:39 2nd Eruptive Period 3:05 Glaciers Carve the Volcano 3:35 3rd Eruptive Period 4:03 Long Dormant Volcanoes