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North
America
Chihuahuan
Location: North Central Mexico, Arizona, New Mexico, Texas
Size: 175,000 square miles
Type: hot subtropical
Features: mountains, mesas, stony areas, and sandy soil
Great
Basin
Location: Idaho, Nevada, Oregon, and Utah
Size: 158,000 square miles
Type: cold winter
Features: mountain ranges, basins, and large expanses of
salt flats
Sonoran
Location: Arizona, California, and parts of Mexico
Size: 120,000 square miles
Type: hot subtropical
Features: basins and plains bordered by mountain ridges
Mojave
Location: Arizona, California, and Nevada
Size: 54,000 square miles
Type: hot subtropical
Features: sandy soil, gravelly pavement, salt flats
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