Hans van der Kwast 

#30DayMapChallenge Day 1: Points

Yesterday, I went for a nice autumn walk to National Park Utrechtse Heuvelrug. There, I saw some #tumuli (burrial mounds) from the Bronze Age. Inspired by that, I've downloaded the tumuli points from #openstreetmap and created a map in #qgis with the Dutch DTM (AHN4) as a backdrop.

#gis #opendata  

Nov 1, 2024 at 12:02pmWeb
Show threadOrewoetNov 2, 2024
@hansakwast Nice map!
There seem to be a lot of them at the Veluwe. I wonder if that is because some have been washed away or ploughed away in other parts of the country.
Show threadAmaury HavéNov 2, 2024
@hansakwast the resolution of the AHN4 😍
Show threadHans van der Kwast Nov 2, 2024
@amaury_h Yes, this is the 0.5 m DTM with the trees and other surface objects filtered out. Also the original LiDAR data is freely available for the whole country.
Show threadAmaury HavéNov 2, 2024
@hansakwast
I wish we had that for the Near East!
Show threadronix 🏺Nov 2, 2024
@hansakwast Very nice. Reminds me of something I saw in the Bavarian Site Preservation Office - they have some software bundle for something similar. Pretty neat.