Canadian Campaign for Up-to-Date Topo Maps

So what is Maps for Canadians doing now that the federal government changed its mind and decided not to stop producing paper topo maps? They’re campaigning to bring our topo maps up to date — and they want people to write their MPs, the Minister of Natural Resources and, in the pre-budget period, the Minister of Finance to that end. Via Slashgeo.

They argue that many of the country’s topo maps are decades out of date, and some areas haven’t been mapped at all. But, to be fair, many of the areas not updated recently have not significantly changed in that time, and some of the areas not mapped are remote areas that have not been mapped at a 1:50,000 scale — presumably they’ve been mapped at lower resolutions, yes?

Posted on Monday, February 26, 2007 at 5:21 PM
Categories: Topo Maps & Trails

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Comments

I think the largest scale in which Canada has complete coverage is 1:250K. That’s good enough for general info. purposes, but can’t give detailed topographic information. 1:50K (or maybe the 1:63K the USGS uses in parts of Alaska) is about the smallest scale that will give you reasonably useful topographic coverage. At 1:250K, the topo. information can missome pretty significant feaatures. As far as coverage goes, I don’t think Canada has ever completed the 1:50K series, but it has done a lot of the country.

Lloyd Spivak | 02/27/2007 at 9:47 AM | #

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