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189929 3 months ago

Oh I see, you handled that well in https://www.openhistoricalmap.org/changeset/190245. Thank you!

189929 3 months ago

Plot twist: the old border did follow the Colorado River, but the Colorado River was closer to where the border is now than where the river is now. It was just curvier than the current border.

https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~338868~90107091:No--3--Baja-California

189929 3 months ago

Ah, this happened in 1944:

https://www.inegi.org.mx/contenidos/productos/prod_serv/contenidos/espanol/bvinegi/productos/nueva_estruc/889463909262.pdf#page=65