
ff5722
- Mapper since:
- 11 December, 2015
- Last map edit:
- 27 July, 2025
http://hdyc.neis-one.org/?ff5722
Main mapping areas of interest
- Southeast Gansu (Lanzhou, Tianshui, Dingxi, Pingliang, Qingyang, Longnan)
- New expressways and major roads in China
- Updating areas using Sentinel-2 (osm.wiki/Sentinel-2)
Useful links
Latest Diaries
2018 Laos dam collapse imagery
The Sentinel-2 satellite finally captured a cloud free coverage of the 2018 Laos Dam Collapse site. Over a distance of more than 50km, everything n...
2017 Sichuan landslide aftermath
On 24 June 2017, a big landslide occured in China’s Sichuan province, burying dozens of villagers alive. Although pictures from the ground clearly ...
A hospital on every street corner in South Korea?
I’m tempted to replace all those named as clinic by the tag amenity=clinic, but maybe someone who has lived in Korea can confirm if that’s appropri...
Does anyone even check what HOTOSM contributors leave behind?
To name a few things in the above area: residential roads tagged as motorways, primary or secondary the same road went from mo...