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#1
François Goulet

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Hi!

I have two maps of south Chile to do (near the Argentinian border) and I'm looking for data in the 1:250,000-1:500,000 range...

I use VMAP0 for now, but it's horribly bad in that area. My GPS points are sometimes almost 2 km off! (but they fit with Landsat orthorectified imagery so I know they're good)

Any idea? I've search for over 3 hours this morning and so far, no luck!

Thanks!!

#2
Nick H

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It might just be worth looking at OSM data :).

http://downloads.clo...ads_breadcrumbs

Regards, N.
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#3
François Goulet

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It might just be worth looking at OSM data :).

http://downloads.clo...ads_breadcrumbs

Regards, N.


Though too... but nope! :(

Thanks!!

#4
trangy

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did you try natural earth?

http://www.naturalearthdata.com/

#5
François Goulet

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Yes... but it's 1:10 mil :(

Greatest dataset, but the scale's too small...

Thx!!

#6
Nick H

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I think you'll struggle. It's a long shot but there is always:

http://www.gadm.org/country

Admin areas only, probably not much use for what you want.

Regards, N.
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#7
sitesatlas

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For coastlines and lakes -- which is half the battle in southern Chile -- you'd definitely want to look at the SRTM Water Body Data Files, the oceans and lakes derived from the high resolution (90 m?) SRTM dataset. They're divided into 1 x 1° tiles and available as zipped shapefiles here.

The attachment is a screenshot of the data from the Reina Adelaida Archipelago area.

Attached Files


Michael Borop
World Sites Atlas
http://www.sitesatlas.com

#8
François Goulet

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For coastlines and lakes -- which is half the battle in southern Chile -- you'd definitely want to look at the SRTM Water Body Data Files, the oceans and lakes derived from the high resolution (90 m?) SRTM dataset. They're divided into 1 x 1° tiles and available as zipped shapefiles here.

The attachment is a screenshot of the data from the Reina Adelaida Archipelago area.


That's great!

Thanks! (they don't have linear hydrography, don't they? ;) )

#9
sitesatlas

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That's great!

Thanks! (they don't have linear hydrography, don't they? ;) )


No, they don't, I'm afraid. On the other hand, the files are derived from SRTM elevation data, which you might be able to use to generate a matching stream network...
Michael Borop
World Sites Atlas
http://www.sitesatlas.com

#10
François Goulet

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The Military Geographic Institute of Chile is selling each 1:250,000 and 1:50,000 sheets for less that 200$.

We had a submission to do, but if we have the contract, maybe we'll go in the commercial way...

Thanks guys, that helps a lot!!!




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