Cundinamarca
Cundinamarca is a department of Colombia, one of the original nine states of the "United States of Colombia".
Most of Cundinamarca is in the Eastern Cordillera, just south of Boyaca, bordered by the Magdalena River on the west, reaching down into the Amazon River basin on the east, and bordering on Tolima to the south. The federal district of Bogotá is nearly completely surrounded by Cundinamarca territory, and indeed was formed by carving up Cundinamarca; between this and other divisions, the present department of Cundinamarca is much smaller than the original state.
Principal towns in Cundinamarca include Engativá , Facatativa, Girardot, Soacha, and Zipaquira.
The capital of Cundinamarca is Bogotá. This is a special case among Colombian departments, since Bogotá isn't legally a part of Cundinamarca, yet it's the only department that has its capital designated by the Constitution (meaning that if the capital was to be ever moved, it'd take a constitutional reform to do so, instead of a simple ordinance passed by the Cundinamarca Assembly). Also, in censi, the populations for Bogotá and Cundinamarca are tabulated separately; otherwise, Cundinamarca's population would total 9.3 million.
As with the other states, Cundinamarca had the right to issue its own postage stamps, and it issued stamps with the state's coat of arms, starting in 1870 and ending in 1904. Many of these are still readily available. There is one rarity, the 2-real provisional stamp from 1883, although there is some doubt as to whether it was sold to the public, since no used copies are known to exist. Likewise, authentic uses of any Cundinamarca stamp on cover are not often seen.