No, Cartel Land is based in Mexico.
Narcos, is about Pablo but it's not all fictional.
Eggactly! In fact, there is a miniseries on Netflix called "ESCOBAR EL PATRON DEL MAL", which is almost just like Narcos, but told from the Colombians' point of view. Narcos is told from the Americans' point of view. It's interesting watching them both, because the audience gets to decide who to believe is telling the truth, the Colombians or the Americans, about differences of some details in the same story. It's kind of like watching "Letters from Iwo Jima" and "Flags of Our Fathers."