Talk:List of volcanoes in the United States

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This article generates hCard microformats, to make place-names and locations parsable by computers, either acting automatically to index articles, or via a user's browser tool, to (for example) add the subject to an address book. Within the hCard is a Geo microformat, to make the coordinates parsable, so they can be, say, located on a map, or sent to a GPS unit. See also Wikipedia's microformat project.

hCard uses HTML classes including: "adr", "county-name", "fn", "label", "locality", "nickname", "note", "org", "region" & "vcard". Geo is produced by {{coord}}, and has classes: "geo", "latitude" & "longitude". Please do not rename or remove these classes. When giving coordinates, please don't be overly precise.

Plutons

According to my understanding, Plutons are igneous formations, but they were not necessarily volcanoes, as they didn't necessarily erupt. Here are the plutons that I have found in the list so far: Whitevelcro (talk)

Malapai Hill

Malapai Hill is a Intrusive rock, which is an underground volcanic formation. I'm not sure whether this counts as a volcano. The rock is volcanic in origin, but it did not erupt. I believe it would be more reasonably categorized as a Pluton than as a volcano. I'd prefer a clarification from someone who knows more about geology or volcanology to make sure. Whitevelcro (talk) —Preceding undated comment added 06:16, 19 June 2018 (UTC)[reply]

Silver Star Mountain

Alaska

Organization

Alaska has a lot of volcanoes that are parts of close groups or even stratovolcanoes, but there isn't any indication of this on the list. I don't see a precedent for smaller groupings of volcanoes on any of the other volcano lists, but it may be useful on a list this large.Whitevelcro (talk)

Cold Bay / Frosty Peak

Cold Bay Volcano listing here: No such thing, really. The coordinates given here are for Mt. Frosty, a volcano within the Cold Bay volcanic complex. Not sure how to go about renaming this link, however, as it goes to a "Cold Bay volcano" page.Idocrase 00:24, 26 January 2007 (UTC)[reply]

I fixed the Cold Bay Volcano problem by renaming the "Cold Bay Volcano" page to Frosty Peak Volcano and moving the relevant information (that wasn't plagiarized) from the Frosty Volcano page to Frosty Peak Volcano. In the process I learned that Frosty Peak is a stratovolcano, which means that it's made up of multiple older strata of previous volcanoes on the location, one of which is Frosty Volcano. I have two remaining concerns. One is that there were two different heights listed for the volcano, and I couldn't find a credible source for the taller one (the ones I found looked like they just copied and pasted from the Wikipedia page). The second is that it might be worth listing one of the older strata of Frosty Peak Volcano, Morzhovoi volcano on its own page. Whitevelcro (talk) 23:13, 9 June 2018 (UTC)[reply]

Buzzard Creek

I believe that Buzzard Creek is inappropriately linked. The main Wikipedia page references a small creek in South Dakota. The coordinates listed point to a nondescript semi-forested hillside in Alaska with no apparent volcano-like features in the near vicinity. In the absence of a suitable alternative name or evidence of the volcano I would advocate for removal, but I will wait for alternative opinions/guidance. 129.55.200.20 (talk) 17:35, 17 May 2018 (UTC)[reply]

I have now found that the volcano IS real, and IS named the Buzzard Creek caldera, but the link is not appropriate and is at a slightly different location. I am removing the link and updating the coordinates. 129.55.200.20 (talk) 17:38, 17 May 2018 (UTC)[reply]

Stepovak Bay 3

Stepovak Bay also has volcanoes 1, 2, and 4, which should perhaps be listed. Whitevelcro (talk)

Double Glacier

I have noticed that Double Glacier links to Double Glacier not Double glacier volcano and I do not know how to fix. Sunbelt alaska (talk) 09:33, 15 October 2021 (UTC)[reply]

Arizona

I am deleting Bonito Lava Flow from the list of volcanoes as it is a lava flow associated with Sunset Crater and not a volcano in its own right. See Geology of Sunset Crater National Monument --Burntnickel 15:06, 12 April 2007 (UTC)[reply]

San_Francisco_volcanic_field#Notable_vents has a list of volcanoes in the field, some of which are listed in the Arizona section and some of which are not. It would be good to clean up/organize both sections to make sure that everything is listed properly. Whitevelcro (talk) 22:58, 29 June 2018 (UTC)[reply]

Oh, and I just found a few more volcanoes to add: Uinkaret volcanic field Whitevelcro (talk) 23:01, 29 June 2018 (UTC)[reply]

Washington

White Chuck Cinder Cone

This may not be notable enough. There are a lot of small cinder cones in volcanic areas (for example, there are a bunch in the Simcoe Mountains area). So we may want to either remove cinder cones from the list, possibly including them in the articles for the larger volcanoes or the area where they are located. For example, this Cinder Cone is near Glacier Peak. Or, there may be a lot more small volcanoes to add to the list. In that case, we would want to add Dishpan Gap Cinder Cone and Indian Pass Cinder Cone, which are located near White Chuck.Whitevelcro (talk)

Microformats

I've added the hCard microformat to this page (class="vcard"); effectively wrapping the existing "Geo" microformat (in {{coord}}) with a name field (class="fn org"). Andy Mabbett 15:48, 16 April 2007 (UTC)[reply]

Too Many Entries?

I've been adding entries to the Arizona section and it is getting pretty big so I got to thinking, would it make sense to list individual vents and cones belonging to a particular volcanic field with that volcanic field rather than in this category? These would be features of a particular site of volcanism rather than unique volcanoes. Exceptions could be made if there is a compelling reason, if the site is a stratovolcoano or a case like Lassen Peak. Thoughts? --Burntnickel 00:38, 4 May 2007 (UTC)[reply]

It might be better to just split this page in two alphabetically (A-M, N-Z, or whatever) . Andy Mabbett 14:52, 3 July 2007 (UTC)[reply]

Active?

I think it might be nice if the list mentioned whether the volcanoes are still considered active or not. —Preceding unsigned comment added by 221.186.127.18 (talk) 00:52, 27 February 2009 (UTC)[reply]

That's actually a lot harder than it seems. Geologists don't actually classify volcanoes that way. It's more of an "evening news" sort of classification. See Talk:Mount_Hood#Dormant or active.3F for a discussion of whether Mount Hood is active or dormant. —EncMstr (talk) 00:56, 27 February 2009 (UTC)[reply]

Threat assessment ratings do a good job of answering this sort of question. [1] -- Beland (talk) 05:06, 26 October 2018 (UTC)[reply]

Coordinates

{{geodata-check}} The coordinates need the following fixes:

Write here

89.60.169.109 (talk) 14:54, 13 June 2009 (UTC)I believe the Davidof volcanoe is located on Davidof Island and the coordinates[reply]

51°57'4.37"N 178°19'47.53"E would be more accurate.

Done, but used coordinates from http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Davidof. BrainMarble (talk) 02:56, 13 February 2010 (UTC)[reply]

Coordinates

{{geodata-check}} The coordinates need the following fixes:

Write here

89.60.169.109 (talk) 15:19, 13 June 2009 (UTC) More likely Mount Kiska is at 52° 5'57.00"N 177°36'16.04"E[reply]

Done, but used coordinates from http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Kiska. BrainMarble (talk) 03:07, 13 February 2010 (UTC)[reply]

Missouri

Could someone add the St. Francois Mountains to the list for Missouri. The area was volcanic 1 billion years ago. Thank you Magnum Serpentine (talk) 20:00, 5 September 2009 (UTC)[reply]

Done, using the following references:

End. BrainMarble (talk) 03:49, 13 February 2010 (UTC)[reply]

Maryland

If the list is going to include long dead volcanoes, can Garrett Island (Perryville, MD) be added? From what I've read, when it was active, it was an off-shore volcano. For that matter, the USGS says that there were volcanoes all over Virginia, the Carolinas, Georgia, Maryland, etc. Elemtilas (talk) 22:30, 15 June 2010 (UTC)[reply]

Lava fields

Why are there listings for lava fields? They aren't volcanoes, rather the product of a volcano. They should be removed since a list including lava fields would greatly expand what is already going to be an overwhelming list! Newberry Volcano in Oregon has probably hundreds of lava fields on it's flanks. But they all came from Newberry, a single volcano. If no one protests, I will begin removing listings for lava fields. Leitmotiv (talk) 22:39, 12 July 2010 (UTC)[reply]

Yellowstone Caldera

The list says it erupted 640,000 years ago but it has erupted about 10 times since then. The most recent eruption was something like 70,000 years ago and phreatic steam explosions have occurred in the lake - maybe more recently. Perhaps this should be noted in the list Senor Cuete (talk) 16:11, 22 April 2011 (UTC)Senor Cuete[reply]

I've done so. --Avenue (talk) 00:19, 23 April 2011 (UTC)[reply]

Texas volcanoes

This does not mention the volcanoes of the Big Bend area. —Preceding unsigned comment added by 99.69.64.207 (talk) 14:30, 15 May 2011 (UTC)[reply]

Salton Buttes

The Salton Buttes should be added to the California list. The wikipedia article for them states they are considered active. 96.40.125.130 (talk) 22:41, 13 May 2018 (UTC)[reply]

They're also on a recently release federal list:

http://www.latimes.com/local/lanow/la-me-ln-volcano-california-20181025-story.html

172.251.69.173 (talk) 16:26, 26 October 2018 (UTC)[reply]

Mount Shasta

I found an article today that disputes the 1786 eruption. https://www.scientificamerican.com/article/californias-mount-shasta-loses-a-historical-eruption/ Timothy McGuire (talk) 22:05, 20 August 2019 (UTC)[reply]

Colorado

I have long studied Colorado's volcanic past and noticed the Summer Coon Stratovolcano was not listed. I've added it but have never created a Wikipedia page so I could use some pointers. Summer Coon is a 34 million year-old stratovolcano that has been completely eroded down to its base and has some of the best preserved radial dikes in the US. Reference here https://www.fs.usda.gov/nfs/11558/www/nepa/100663_FSPLT3_4181722.pdf — Preceding unsigned comment added by Cweyer (talk • contribs) 10:28, 2 August 2020 (UTC)[reply]

What constitutes a "volcano?"

For the most part, I am satisfied with the what is listed. However, the inclusion of a few of these older volcanic, like those in Michigan and Missouri structures is a bit questionable. If the page includes those, this page could be absolutely crammed with very ancient volcanic structure, especially in Minnesota, Wisconsin, and Michigan. So, does is there a systematic approach to inclusion here? — Preceding unsigned comment added by Trilobite12 (talk • contribs) 01:00, 12 May 2021 (UTC)[reply]

It might help to add a column of "Type"

For example, extinct, dormant, etc. Banderson1962 (talk) 22:25, 7 January 2024 (UTC)[reply]

I think adding the activity classification (extinct, dormant, etc.) could get messy because there’s debate on that subject for multiple volcanoes but I would welcome a type classification for stratovolcano, shield, cinder cone, etc. DJ Cane (talk) 22:27, 7 January 2024 (UTC)[reply]