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This is a list of U.S. state soils. A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds.
Arizona is also one of the Four Corners states and is diagonally adjacent to Colorado. Arizona has a total area of 113,998 square miles (295,253 km 2), making it the sixth largest U.S. state. [1] Of this area, just 0.3% consists of water, which makes Arizona the state with the second lowest percentage of water area (New Mexico is the lowest at ...
The Casa Grande is the official state soil of Arizona. Name and origin. The Casa Grande series was first identified in 1936.
This is a list of Superfund sites in Arizona designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up ...
Most of the cropland in the Southwest United States is used to grow hay. This is mainly because there are better places in the United States to grow soil-intensive crops, such as the Great Plains and much of California. In New Mexico, 1.55 million tons of hay were grown in 2007. [9] In Nevada, over 90 percent of the cropland is used to grow hay ...
An Arizona state park is an area of land in the U.S. state of Arizona preserved by the state for its natural, cultural, or recreational resources. The state park system in Arizona includes both state parks and state historic parks, as well as other designations such as natural areas and recreation areas.
Information about All States from UCB Libraries GovPubs; State Resource Guides, from the Library of Congress; Tables with areas, populations, densities and more (in order of population) Tables with areas, populations, densities and more (alphabetical) State and Territorial Governments on USA.gov; StateMaster – statistical database for U.S. states
This is a list of terrestrial ecoregions as compiled by the World Wildlife Fund (WWF). The WWF identifies terrestrial , freshwater , and marine ecoregions . The terrestrial scheme divides the Earth's land surface into 8 biogeographic realms , containing 867 smaller ecoregions.