Came across this May 2017 announcement when Teck commenced their exploration. A map of potential drill targets.
https://hotcopper.com.au/threads/ann-exploration-commences-at-alacran.3439911/#.XaLwPFUzaUk
First time I've seen reference to Loma Bonita Norte. Did Teck sink a hole there? I don't think so.
I guess this is going to be a target now. Pretty much in the heart of Meda De Toxxie