Lake San Pablo or Imbacocha, Spanish Lago San Pablo, Kichwa: Impakucha ("Lake of the Andean Climbing Catfish": impa "Andean Climbing Catfish", kucha "lake") is located in the province of Imbabura in northern Ecuador, at 2,660 m above sea level, below the Imbabura volcano, has a water surface of about 1.8 km² and is of volcanic origin.