I'm not sure the Salton is the best example of that. It's not a permanent fixture. https://en.wikipedia.org/wiki/Salton_Sea
It seems it's presently only still here because of previous inefficient irrigation (from the Colorado River) and that farmers restricting their water usage is actually leading to the Salton's decline.
Not just inefficient, it was a large scale industrial accident. A canal wall was breached and not repaired for two years and the runoff all collected in this low lying area. It’s a very odd place to visit now though for marketing reasons they tried to make it into a resort destination before it became a place you can only tolerate for a very short time.
Ah, interesting. Much more complicated than I'd think, especially as somebody not from those parts.
https://xkcd.com/1739/ - but with "terraforming"