There's an error in the border of Qinghai province of China

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1

The southwest part of Qinghai is uncorrectly attributed to Tibet. I wonder how this error occurs. Could someone fix that?

2

You are talking about a border that is probably a few thousand kilometers long.
You’ll have to provide us with at least a link to the area to be able to look into it.

3

Hi @NightSoulMEGA and welcome here!

Is it the Naqu-Yushu-Haixi border?

If yes then please have a look at the tagging of the boundary of Tibet

It contains

note=The Naqu-Yushu-Haixi border shows the actual jurisdiction of the local authorities, not the legal administrative area of the province.

Best regards