CAJATAMBO or CAXATAMBO, a town and province of the department of Ancachs, Peru, on the western slope of the Andes. It has a population of about 5,000. The town is II orn. N. by E. of Lima, in 9° S3' S., 76° 57' west. The principal industries of the province are the raising of cattle and sheep and the culti vation of cereals. Cochineal is a product of this region. Near the town there are silver mines, in which a part of its population is employed.