There are 1,904 square miles of the Grand Canyon National Park.  Most of it is maintained as wilderness.  The South Rim is one of the three distinct sections of the park (along with the North Rim and the Inner Canyon).  Each section has different climates, different vegetation, and different experiences.	The summer temperatures there are quite pleasant.  The temperature is normally around 50-80 degrees F(10-20 degrees C).  In the winter, expect snow, icy roads, and icy trails.  Winter conditions at the South Rim can be extreme.  Spring and fall weather is very unpredictable.
The South Rim of the Grand Canyon is 7,000 feet above sea level. The North Rim is 1,200 feet higher than the South Rim.  The highest points on the rim are about 9,000 feet above sea level.
	The South Rim receives 16 inches of precipitation per year.  The North Rim is higher than the South Rim.  It is colder and wetter.  The Inner Canyon is drier and hotter than the South Rim.  The rain also determines what plants and animals live in the South Rim.

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