today's trivia
Which national park is among the very few places where earth’s mantle is visible at the surface? (Hint: This is not a US National Park)
20 Replies
2w
On an oceanic ridge that pushed up above the water
(In response to this post by lilhokie525)
I
I85Hokie
2w
Much farther south of it. Can’t remember the name of it without googling.
(In response to this post by lilhokie525)
V
Va AandM
2w
And only piece of mantle rising from the ocean’s depths.
(In response to this post by I85Hokie)
There's a local park near Anacortes, Wash., where rocks from the mantle are
visible (that's them in the foreground of the pic) - not a national park, obvs, and I'm not sure if that's the same thing as the mantle itself being visible
(In response to this post by lilhokie525)
2w
Canada’s Gros Morne NP in Newfoundland has about 38 square miles of exposed mantle that was thrust to the surface during a continental collision 500 million years ago.
(In response to this post by vawter85)
2w
I will be able to acknowledge a correct answer.
(In response to this post by lilhokie525)
V
Va AandM
2w
(In response to this post by lilhokie525)
Is it in Iceland? Been to the tectonic plates.
(In response to this post by lilhokie525)
2w
the tectonic plates are separating is really cool.
(In response to this post by Victory Ticker)
2w
** Edited by Stork at 7/16/2026, 7:37:42 AM
(In response to this post by lilhokie525)
