Soil resources

Natural resources of unconsolidated fragmented rock, humus, and mineral matter that cover the surface of the earth.
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Digital soils survey map of the Patagonia Mountains, Arizona

The Soil Survey of Santa Cruz and Parts of Cochise and Pima Counties, Arizona, a product of the USDA Soil Conservation Service and the Forest Service in cooperation with the Arizona Agricultural Experiment Station, released in 1979, was created according

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