Acuña’s inspiring story is proof that activists’ efforts do matter, and that even the world’s largest companies will be held to account.

Peruvian activists knew they were entering a David-and-Goliath battle when they decided to shut down the creation of a $5 billion open-caste gold and copper mine next to a pristine lake, but they have so far succeeded.

However, much of the community’s success in this endeavor can be credited to Maxima Acuña, a farmer who owns a 60-acre plot of land on the exact site where the giant Newmont Mining Corporation desires to dig.

Earlier this year, the mother of four received one of six prestigious Goldman Environment prizes for pioneering the fight against corrupt mining corporations, and her story is definitely worth sharing.