The mine has prime weather for iron production-being a desert,whereas most of China's iron imports come from areas prone to rain weather disruptions-namely Australia-where most iron is exported or produced in the N tropic zone subject to frequent cyclones and heavy rains
and Brazil where rains frequently halt iron exports/production also-sometimes for 3 weeks at a time

So deserts are prime iron mining country-1 of the definitions of a desert is less than 10 inches precip/yr w other modifying factors- Ensenada gets ca 10-11"/yr

the mine is in the rain shadow of the coastal mountain range so it should get even less and production is rarely disturbed by rain
the area east of the much taller mid baja mountain range is thus much drier, getting only 2"/yr

Trees increase precipitation,as fools worldwide discover when they cut down the forest and the area turns to unproductive desert,such as sub-saharan africa- when the ottoman empire put a tax on trees,most cut down their trees turning previously well watered areas into desert- a process notably reversed by Israel on its land

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