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I'm seeking the latitude and longitude extents (i.e., extremes of lat and long) for each Canadian province. I already have Alberta and BC. For example, Wikipedia lists Ontario's extent as 49° 00’ N, 114° 04’ W to 60° 00’ N, 139° 03’ W.

I need the same for the other provinces. I googled a variety of terms.

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    They are big places and have an infinite number of lat longs, are you looking for the center of each province, the capital, the perimeter? More info. Commented Jul 16, 2015 at 22:08
  • Welcome to GIS SE! As a new user be sure to take the Tour. Here you are asking a very brief question that needs more information before it can become answerable. Please be sure to specify how this relates to GIS rather than general geography.
    – PolyGeo
    Commented Jul 16, 2015 at 22:21
  • Thank you. I am looking for extreme lat and longs of each province. So northernmost/southernmost lat, Easternmost westernmost long. Thanks!
    – John
    Commented Jul 16, 2015 at 22:38
  • 2
    While the question is now clearer, you still have the burden of making this question GIS-relevant.
    – Vince
    Commented Jul 16, 2015 at 22:56

4 Answers 4

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If you load Natural Earth data into PostGIS, you can extract the extents of each province with a query:

WITH provinces AS (SELECT name, ST_Envelope(geom) AS geom FROM ne_10m_admin_1_states_provinces WHERE admin = 'Canada') SELECT name, ST_XMin(geom) AS xmin, ST_YMin(geom) AS ymin, ST_XMax(geom) AS xmax, ST_YMax(geom) AS ymax FROM provinces;

name | xmin | ymin | xmax | ymax
---------------------------+---------+-------+---------+------ Saskatchewan | -109.99 | 48.99 | -101.36 | 60.00 Alberta | -120.00 | 48.99 | -109.99 | 60.00 British Columbia | -139.06 | 48.30 | -114.03 | 60.00 Nunavut | -120.68 | 51.64 | -61.08 | 83.11 Northwest Territories | -136.44 | 60.00 | -101.98 | 78.76 Yukon | -141.00 | 60.00 | -123.81 | 69.65 Ontario | -95.16 | 41.66 | -74.34 | 56.86 Québec | -79.76 | 44.99 | -57.10 | 62.59 New Brunswick | -69.06 | 44.60 | -63.77 | 48.07 Nova Scotia | -66.32 | 43.42 | -59.68 | 47.03 Newfoundland and Labrador | -67.80 | 46.61 | -52.61 | 60.37 | -61.50 | 47.18 | -60.13 | 47.80 Manitoba | -102.03 | 48.99 | -88.94 | 60.00 Prince Edward Island | -64.41 | 45.95 | -61.97 | 47.06

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  • You have an interesting blank row there. Southeast is St Paul Island, apparently part of NS. Northwest is Île-Brion, apparently part of QC.
    – Liz
    Commented Jul 19, 2019 at 20:53
  • Yeah not sure what's up with that. The most recent Natural Earth dataset has the expected 10 provinces and 3 territories but an older version must have had that extra feature for some reason.
    – bosth
    Commented Jul 19, 2019 at 21:11
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You can use Open Street Map Nominatim API for Geocoding and it will return the bounding box

Example:

Manitoba, Canada

http://nominatim.openstreetmap.org/search?q=Manitoba,%20Canada&format=xml&polygon=1

Response (xml)

boundingbox="49.9971285,49.9972285,-96.8892673,-96.8891673" polygonpoints="[[-96.8892173,49.9972285],[-96.889181944661,49.997213855339],[-96.8891673,49.9971785],[-96.889181944661,49.997143144661],[-96.8892173,49.9971285],[-96.889252655339,49.997143144661],[-96.8892673,49.9971785],[-96.889252655339,49.997213855339]]"

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You can download Country Boundaries from Natural Earth:

http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/110m/cultural/ne_110m_admin_0_countries.zip

Found here:

http://www.naturalearthdata.com/downloads/110m-cultural-vectors/

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  • @john and once you have the shapes you can open them in something like QGIS. Preferably in WGS84 coordinates, but you can project if not. If they're individual files, the extent property of the layer will tell you the info you want. If one file and you don't want to save them individually, you'd need to look at finding the minimum bounding box/rectangle/geometry of each province to get the information you want.
    – Chris W
    Commented Jul 18, 2015 at 0:46
  • @MartinF it means that you don't really represent Ontario (for example) as a single LAT/LON... Commented Jul 23, 2015 at 20:21
  • @MartinF true - I will revise my answer. Commented Jul 23, 2015 at 20:24
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Have a look at "Extreme points of Canadian provinces" from Wikipedia.

This is a table of extreme points (north, south, east and west) of each of the provinces and territories of Canada.

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