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Laurentian Abyss and the Canadian coast
leap frog
sister_dear wrote in little_details
Searches used: Laurentian Abyss location, Laurentian Abyss map, Google Maps, Googled "world atlas" and searched through those websites.
Setting: modern day, for a Transformers fic.

Where exactly is the Laurentian Abyss? The most I can seem to find is "in the Atlantic, off the eastern Canadian coast," but I'd like something a little more specific, if possible. Also, if I wanted something of extraterrestrial origins to set off from there in a vaguely southwesterly direction and arrive at a beach in North America that was unpopulated but still somewhat accessible (i.e. I need a giant robot that turns into a Topkick to be able to get there) about where would I want this thing to hit land? I'm thinking somewhere along the Netherlands (Newfoundland. Good God, you know you've been staring at a computer too long...) but depending on where the Laurentian Abyss actually is that might not be the most likely place.

All my searches are turning up the exact same three lines of information and I'm getting more than a little frustrated, so any help will be very appreciated.

If I'm remembering correctly and it's in the Sohm Plain, it would be around the waters off Cape Breton/southern Newfoundland... My Grade 10 Geography teacher is sadly shaking his head right now without knowing why.

Oh, that's closer than I thought it would be. That's a good thing. XD

Thank you!

I can't swear to it, but it makes sense considering the name. :-)

I'll try to remember to hit the atlas I have at work when I get there Tuesday if no ones answered this since then. I can find stuff on the Laurentian fan, and the Laurentian channel/canyon, but nothing labelling an "abyss". You may want to check out the coast guard site though and also see if you can find other bathymetric information.

Amd I suppose you could stick in The Hunt for Red October DVD and try to freeze frame the shot where Ryan looks and finds the Abyssal on a map...

Hadn't even thought of checking the coast guard site. And I think we do have that DVD floating around here somewhere. Thank you!

Whoa, I didn't even know they were talking about a real place. When they said 'deepest place on the planet' I thought they were talking about the Mariana Trench and just gave it a fake name. I'm laaaame =P

But I just went searching on Google maps and typed in 'laurentian channel'. According to that it's to the side of Nova Scotia, which is what I think corresponds with what I was finding on text searches.

Whoa, I didn't even know they were talking about a real place. When they said 'deepest place on the planet' I thought they were talking about the Mariana Trench and just gave it a fake name.

You're not alone; I did, too.

Wikipedia thinks it's real, and actually the second deepest place on the planet. (Movie got it wrong. Surprise, surprise.) Heck if I can find it on a map, though.

Thanks, I'll try looking that one up. In the morning, when I'm actually awake.

Wikipedia thinks it's real, and actually the second deepest place on the planet.

Though the Wiki discussion page for that entry seems to think the entry itself has the depth out by a factor of ten (really 600m, not the 6000m given)

Yet another example of why Wikipedia is a good place to start research but not to finish it. *facepalm*

true depth


2009-09-19 10:13 pm (UTC)

Try 8,428 metres (27,651 ft) 600 metres is absolutely ridiculous.

6000 meters (~3000 fathoms from a research paper). There are 9 location that are more than 7500 meters deep, only three of which are in the Atlantic, the Puerto Rico being the deepest (alantic) at 8800 meters. The laurentian channel runs from the mouth of the St Lawrence river to the northern edge of the Sohm plan.

For the beach, you might want to try Middle Cove Beach in Newfoundland. It's accessible by car, but out of the way. There are usually people there having bonfires in the summer, though. Some lovely photos at

Since this can be set in fall or winter as easily as summer, that sounds great. Thanks for the link.

It also has the advantage of being about twenty minutes from where I live. Let me know if you'd like other pictures! (For some reason I don't get comments emailed, even though that option's turned on, but if you drop me a line on whatever my most recent post is, I'll see it.) I'll keep checking back here, too, for the next few days.

Hey, an eyewitness. XD Awesome. If you don't mind a few more questions... Are there any inlets or caves in those cliffs that you can get to from the beach, or places where the water stays deep close to the shore?

From the pictures, it looks like it might stay fairly forested right up to where the sand starts. Is that about right?

Thank you for letting me pick your brain. <3

I know it's probably an unintentional mistake, but the Netherlands is not what you want if you're looking at Canada.

I think you want Newfoundland or Nova Scotia.

You might want to look up information on ocean currents as well, to help you with the location.

Good grief, did I actually make that mistake?

...I did. *headdesk* Fixed, and thank you. I'm not usually this geographically inept, honest.

Good point about the ocean currents.

I was reading an old copy of National Geographic about bottlenose whale research and the made mention of a deep area of sea called The Gully, near Sable Island, Newfoundland. From the diagram of the whale dives they tracked it seems to be ~6000 feet deep. I believe it's now a marine park.

The three deepest places in the earth oceans are:
1. The Mariana Trench, which is the deepest place in any ocean, in the western Pacific, just east of the Mariana Islands, and is about 2,550 kilometres (1,580 mi) long
but has an average width of only 69 kilometres (43 mi). It reaches a maximum-known depth of 10.911 km (10,911 ± 40 m)
or 6.831 mi (36,069 ± 131 ft) at the Challenger Deep, a small slot-shaped valley in its floor, at its southern end,
although some unrepeated measurements place the deepest portion at 11.03 kilometres (6.85 mi).
2. The Puerto Rico trench is 5.2 miles (27,500 feet) deep. It is also in the Atlantic Ocean just North of Puerto Rico.
3. The Java Trench is 1,600 miles long and is an average depth of 23,377 feet. It is in the Indian Ocean.


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