I found this map of Colombia when it was at its peak before the secession of Venezuela and Ecuador in 1830. In historical contexts, Colombia in those days are often referred to as Great Colombia (Gran Colombia in Spanish), though it was not called so in those days.
A bigger picture of such a map, but for some unknown reason cropped in the west so you cannot see all of the Departamento del Istmo, which would become the Republic of Panama in 1903.
