13 comments

  • shagie 12 hours ago
    And if you want to hike it, you've got the International Appalachian Trail... https://iat-sia.org/the-trail/
    • almog 9 hours ago
      If you want to section hike it, its entire North American part is covered by the Eastern Continental Trail (ECT), which some people (very few, as in a tiny fraction of all A.T. thruhikers) thruhike it in a single calendar year.

      https://en.wikipedia.org/wiki/Eastern_Continental_Trail

  • biomcgary 11 hours ago
    This explains the Scotch-Irish settling in Appalachia. It felt like home, but without the overbearing Brits nearby.
    • librasteve 11 hours ago
      surely you mean overbearing English, old man?
      • oncallthrow 9 hours ago
        No, we just found Nicola sturgeon’s hacker news account
      • clickety_clack 10 hours ago
        Ya, the Scotch-Irish were the Brits doing the overbearing in Ireland.
        • physicsguy 1 hour ago
          Let’s also not forget that the Irish lords that the Anglo-Irish supplanted were themselves the descendants of Normans.
    • SubiculumCode 5 hours ago
      Appalachian Fae, mysterious lights, all the stories. Love it.
    • esseph 10 hours ago
      A lot also settled in the farmlands of Western Kentucky and brought sheep farming along with them, which is how it emerged as a very intense (mutton, pork, chicken, beef) bbq region.
    • sollewitt 5 hours ago
      On the island of Ireland those people _are_ the overbearing Brits.
  • jjulius 5 hours ago
    If ya think that's neat, go check out the idea behind Baja BC - that huge chunks of British Columbia and Alaska, as well as portions of Washington, were once down by Baja Mexico.

    https://ui.adsabs.harvard.edu/abs/2015AGUFM.T13A2979G/abstra...

    • sbuttgereit 3 hours ago
      Nick Zentner, a geology lecturer at Central Washington University, takes a particular subject and does a relatively deep, discussion oriented, dive into it over the course of 26 sub-topics... his "A to Z" series. In these he does a couple streamed shows a week and includes links to relevant papers and resources. At the end of each session is a viewer Q&A for those watching live. Almost an online continuing education course....

      He did "Baja-BC A to Z" 3 years ago:

      https://www.nickzentner.com/#/baja-bc-a-to-z/

      With the associated reading list: https://www.geology.cwu.edu/facstaff/nick/gBAJA/

      Currently he's about halfway through another "A to Z" called "Alaska A to Z" which covers some of that same territory

      https://www.nickzentner.com/#/livestream-series-26-episodes/

      And the so-far-posted reading list: https://www.geology.cwu.edu/facstaff/nick/gALASKA/

      Of central importance to the first half of the current Alaska series is recent paper by geologist Robert S. Hildebrand titled: "The enigmatic Tintina–Rocky Mountain Trench fault:a hidden solution to the BajaBC controversy?"

      What's great about these series is that he'll get a number of the geologists writing these papers involved in one way or another. Either contributing interviews or talks specifically for the video series, or like in the case of this Hildebrand centric work in the current series, Hildebrand himself is watching the stream and participating in the live chat with the other viewers, answer questions and the like.

  • fsckboy 3 hours ago
    glancing at that map, an interesting (to an American mostly just cuz we think we know our own geography) trivia factoid came to mind:

    Q: Where in the US are you closest to Africa?

    I'll explain the answer key at the bottom so you don't see them sooo readily if you want to think about it... but whatevs

    an entirely different interesting factoid, the Catskill Mountains in NY State, which seem to be part of the Appalachian Range, are in fact not mountains at all. What appear to be mountains is actually erosion of a high plateau, leaving mountainous appearing hills https://static1.thetravelimages.com/wordpress/wp-content/upl... (they are however connected to the Appalachians, they just aren't mountains)

    .

    Wrong Answer: adirolf

    A: eniam

    I wrote the words backward

  • sakopov 10 hours ago
    According to this study from 2005 [1] the Appalachians are eroding 6 meters per 1 million years while the rivers are incising 30-100 meters per same time period. So they're technically still becoming more rugged.

    [1] https://web.archive.org/web/20250326213947/https://www.geoti...

  • al_borland 12 hours ago
    I visited Scotland last year. They bring this up a lot on tours. Some of the distilleries also bought land in the Appalachian region to grow trees to make future whiskey casks.
    • mauvehaus 6 hours ago
      In Scotland, surely they're concerned with the future supply of whisky casks, not whiskey casks.

      Also, AIUI, because bourbon has to be aged in new white oak barrels, you find a lot of former bourbon barrels aging distilled spirits all throughout the world, Scotland included.

      • al_borland 5 hours ago
        > whisky casks, not whiskey casks.

        Interesting, I just looked up the details on this[0]. I’m surprised they didn’t hammer that home as well. I thought maybe you were just being pedantic at first, but that’s a good call out. I did make sure to say cask instead of barrel, as a barrel is just one size option for a cask.

        They did talk about the rules of scotch vs bourbon and how some of that supply chain works for reuse.

        [0] https://www.scotchwhiskyexperience.co.uk/about/about-whisky/...

  • tengwar2 12 hours ago
    I'm finding it difficult to believe that map relates to the title. It's not showing just the Scottish Highlands (roughly speaking the north-west half of Scotland), but the whole of Scotland, Ireland and Wales, plus about half of England, including the famously flat Lincolnshire fens.
    • zimpenfish 9 hours ago
      > including the famously flat Lincolnshire fens.

      I think they might have gotten flatter in the intervening 200M+ years.

  • nephihaha 12 hours ago
    Didn't know about the Atlas, but I knew northern Scotland and Nova Scotia shared a lot of geology.
    • Tagbert 12 hours ago
      The southern end of the Atlas, the Anti-Atlas range, is from the same formation as the Appalachans. The rest of the Atlas came from a different (later?) event.
  • trgn 12 hours ago
    atlas remain very high though. so what's different there that they're not eroded?
    • wahern 12 hours ago
      I've been nerd sniped. Per Wikipedia, https://en.wikipedia.org/wiki/Atlas_Mountains

      > In the Paleogene and Neogene Periods (~66 million to ~1.8 million years ago), the mountain chains that today constitute the Atlas were uplifted, as the land masses of Europe and Africa collided at the southern end of the Iberian Peninsula.

      But it also notes,

      > The Anti-Atlas Mountains are believed to have originally been formed as part of the Alleghenian orogeny. These mountains were formed when Africa and America collided

      Anti-Atlas? If we jump over to the Anti-Atlas article we see,

      > In some contexts, the Anti-Atlas is considered separate from the Atlas Mountains system, as the prefix "anti" (i.e. opposite) implies.

      and

      > The summits of the Anti-Atlas reach average heights of 2,500–2,700 m (8,200–8,900 ft),

      So in addition to subsequent events, the portion of the Atlas originally formed with the Appalachian is geologically distinguishable from the other portions of the Atlas chain, and actually significantly lower than the parts of the chain formed later, though not as low as the Appalachians.

  • adolph 11 hours ago
    The Scottish Highlands are also significant to contemporary understanding of geology.

    https://en.wikipedia.org/wiki/Hutton%27s_Unconformity

    https://www.youtube.com/watch?v=EfdwRRpiYGQ&t=68s

  • brcmthrowaway 12 hours ago
    Where do the himalayas fit in all this?
    • voxleone 10 hours ago
      The Himalayas formed because the Indian craton moved exceptionally fast northward (all the way from Antarctica) and collided with Eurasia, one of the fastest sustained plate motions known in geological history.

      The collision with Asia began around 50–55 Ma and is still ongoing, which is why the Himalayas are still rising today.

    • mr_toad 7 hours ago
      The Himalayan mountains are new kids on the block. The Appalachian ranges pre-date life on land, they pre-date the evolution of vertebrates.
    • nkrisc 12 hours ago
      They don’t.
    • turtlesdown11 12 hours ago
      They're also mountain ranges formed from the collision of plates? Otherwise, nothing, the timelines of the formation of the Himalayas and the Appalachians are hundreds of millions of years apart.
  • cranberryturkey 9 hours ago
    check out local hiking trails on ParkLookup