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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
Except all of the hills could be valleys, you need to see the numbers on the contours
If it were a local depression instead of a hill, the lines would be hatch-marked on the side pointing into to depression.
Do you have an example, I either never have seen this or never had a depression on a map
You want an example of local depression just swing by my place anytime
heyoooo!
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.
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
Page 2 under contours: https://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf
Awesome, thankyou
A Wisconsin DNR pdf explaining how to identify local depressions on a topo map
They are an oddity for sure. But sometimes there’s a local divot that would be interpreted as a small mound without the hatch marks.
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