> one source I read said that the non-satellite map data was actually correct, and it was the stitching of the satellite imagery that was incorrect The opposit

> one source I read said that the non-satellite map data was actually correct, and it was the stitching of the satellite imagery that was incorrect The opposite is true: If you look at areas like the Macau-Zhuhai border or Hong Kong-Shenzhen, you'll see that the satellite imagery is continuous but the mapping data has discontinuities at the border (some zhuhai streets are halfway across the water to Macau!)