I need one quick clarification before I write the full article (you asked for a long piece).

There is a likely name confusion: Loma Campana is widely known as an oil and gas field in Argentina (Neuquén Basin), not a Colombian coal mine. Colombia’s major coal sites include La Loma, Cerrejón (El Cerrejón), and operations by Drummond, Prodeco, etc.

Please confirm which you want:
– Loma Campana (Argentina — oil/gas field), or
– La Loma (Colombia — coal mine), or
– El Cerrejón (Colombia — large open-pit coal mine), or
– A general article about Colombian coal mining sites (covering La Loma, Cerrejón, Drummond, others), or
– Another specific Colombian mine (please give correct name).

Once you confirm, I will produce the requested English article with the specified HTML tags, headings, bolding, and length.