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Old 12-05-2021, 06:48   #1
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Electronic charts for Gulf of St. Lawrence

I am looking for electronic charts from Quebec City to Newfoundland suitable for OpenCPN.
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Old 12-05-2021, 09:04   #2
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Re: Electronic charts for Gulf of St. Lawrence

Official CHS raster charts (beautiful but pricey):
https://www.charts.gc.ca/charts-cart...blernc-eng.asp
Purchase chart set from dealer, then download from CHS site:
For example:
https://ca.binnacle.com/pages.php?CDpath=3&pID=1

OR:



O-Charts (CHS vector, at a reasonable price):
http://o-charts.org/map/en/CA/index.html
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Old 12-05-2021, 09:09   #3
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Re: Electronic charts for Gulf of St. Lawrence

Quote:
Originally Posted by sv_pelagia View Post
O-Charts (CHS vector, at a reasonable price):
http://o-charts.org/map/en/CA/index.html
I installed the o-charts version. You get a license for 2 devices.

Not used yet... Ontario border is closed ;-(
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Old 12-05-2021, 09:37   #4
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Re: Electronic charts for Gulf of St. Lawrence

I plan to use CM93, they are free
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Old 12-05-2021, 09:57   #5
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Re: Electronic charts for Gulf of St. Lawrence

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Originally Posted by svRaison d Etre View Post
I plan to use CM93, they are free
From where? My understanding is that they are outdated and no longer available ;-(

The o-charts was only 20 Euros, but it would be good to have a backup / alternative...

https://o-charts.org/map/en/CA/index.html
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Old 12-05-2021, 10:28   #6
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Re: Electronic charts for Gulf of St. Lawrence

I still have a old copy, but you are right 20 Euros is not expensive. Are they up to date?
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Old 12-05-2021, 10:40   #7
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Re: Electronic charts for Gulf of St. Lawrence

I don't know. The web page says "Canada 2021 - Great Lakes and Saint Lawrence River"

If you know of any recent changes, let me know and I'll power up my Raspberry Pi and check.
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Old 12-05-2021, 11:00   #8
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Re: Electronic charts for Gulf of St. Lawrence

In my area (Lachine / Lac Saint-Louis), the Updated date is 2020-02-27

The Lachine Marina is still there ;-)
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Old 12-05-2021, 12:02   #9
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Re: Electronic charts for Gulf of St. Lawrence

Lachine on my CM93
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Old 12-05-2021, 12:57   #10
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Re: Electronic charts for Gulf of St. Lawrence

O-charts are very up-to-date (they can be updated monthly for CHS charts.

CM93 (2012 is last/latest that can be used in OpenCPN) can be VERY OUT-of-date. Certainly the case here in British Columbia.
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Old 12-05-2021, 12:59   #11
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Re: Electronic charts for Gulf of St. Lawrence

I prefer Canadian raster charts, at least I used them for all the Great Lakes and they are miraculously great even though some of them are based on early 1900 cartography.
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Old 12-05-2021, 15:23   #12
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Thumbs up Re: Electronic charts for Gulf of St. Lawrence

Quote:
Originally Posted by Westerly31 View Post
I prefer Canadian raster charts, at least I used them for all the Great Lakes and they are miraculously great even though some of them are based on early 1900 cartography.

I have both CHS Raster charts AND O-charts vector charts. Both fully up-to-date. Both work very well in OpenCPN.


Yes, I too PREFER CHS raster charts.



Here in British Columbia, bathymetry is mostly based on much more recent soundings (many within past 10 years).


However, O-Chart vector have some other positives, as well as being much less expensive than CHS raster. I like them too.



An oddity with o-charts Vector based on CHS vector: CHS apparently did not include "all" of the old fathom-based charts of BC (there some missing from Haida Gwaii, even though they ARE included in CHS raster packages).


CM93 is really not appropriate option for Canada.
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Old 12-05-2021, 18:55   #13
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Re: Electronic charts for Gulf of St. Lawrence

Quote:
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CM93 is really not appropriate option for Canada.
Thank you, I bookmark all the link I will downloaded the maps when before I sail to Canada
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