San Mateo de Otao is one of the 32 districts of the Huarochirí Province in the Lima Region. The district was created by order of the law Nº 10001 on November 7, 1944 and its capital is San Juan de Lanca.
It has 7 villages:
San Juan de Lanca
Santo Toribio de Cumbe
Wikipedia https://en.wikipedia.org/wiki/San_Mateo_de_Otao_District
Coordinates -11°52'12.315" N -76°32'40.152" E