• meyotch@slrpnk.net
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      11 months ago

      If it were a local depression instead of a hill, the lines would be hatch-marked on the side pointing into to depression.

      • BCsven@lemmy.ca
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        11 months ago

        Do you have an example, I either never have seen this or never had a depression on a map

        • Illiterate Domine@infosec.pub
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          11 months ago

          Here’s a slide describing how depressions are represented, and here is a topographical map of a sinkhole showing the hashes.

          That said, I had to look pretty hard for a map with those marks. Numbers are much more common.

          • BCsven@lemmy.ca
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            11 months ago

            Ah, awesome. i appreciate you taking the time to put this together. I dont recall these on maps, but as you said numbers are common. And i typically use the topomap with shading, so shading helps with understanding the terrain

      • sixCats@lemmy.dbzer0.com
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        11 months ago

        That’s interesting, ordinance survey (in the UK) don’t do that, so it isn’t a universal standard

        In the UK, you have to notice that the heights are reducing