Cajamarca is a province of the Cajamarca Region in Peru. The capital of the province is Cajamarca. One of the highest elevations of the proviā¦Cajamarca is a province of the Cajamarca Region in Peru. The capital of the province is Cajamarca. One of the highest elevations of the province is the Llusk'a Qullpa mountain range at approximately 4,000 m on the border of the districts of Encañada and Namora.