Difference between Aconcagua and Aconcagua

What is the difference between Aconcagua and Aconcagua?

Aconcagua as a proper noun is a mountain in the andes, the highest point in south america while Aconcagua as a proper noun is a mountain in the andes, the highest point in south america

We hope you now know whether to use Aconcagua or Aconcagua in your sentence.