USA - ARIZONA
Arizona, the "Grand Canyon State", is one of the south western states of the USA. It is the sixth largest US state, its southern edge borders onto Mexico, the other sides of border onto California, Nevada, Utah, Colorado and New Mexico. The three principal population centres are Phoenix (the capital) which is roughly in the centre, Flagstaff to the north and Tucson in the south.
The mean elevation of the state is about 4100 feet, though generally the north (the Colorado Plateau) is higher than the south (the Sonoran Desert) and the two are separated by a mountain range. The state is rich in cacti, indeed they can found in almost all areas and at most altitudes, though they are particularly prevalent in the Sonoran Desert region.

	The Grand Canyon
	The Organ Pipe National Monument
	Echinocereus nicholii and Mammillaria microcarpa
	Yucca baccata
	The Desert in Bloom
	Saguaro National Park
	Saguaros
	South of Tucson
	Echinomastus erectocentrus
	Mammillaria heyderi
	Coryphantha vivipara v bisbeana
	Mountain Plants

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