Port Silt Loam is the state soil of Oklahoma. This type of soil is reddish in color due to the weathering of reddish sandstones, siltstones, and shales of Permian geologic era. Port silt loam can be found in 33 of the 77 counties in Oklahoma and covers around one million acres. The name comes from a small community (Port near Washita County, OK) and the texture of the top soil (silt loam). This is a list of official U.S. state soils: This list is incomplete; you can help by expanding it. ... Official language(s) None Capital Largest city Oklahoma City Oklahoma City Area Ranked 20th - Total 69,960 sq mi (181,196 km²) - Width 230 miles (370 km) - Length 298 miles (480 km) - % water 1. ... Soil is material capable of supporting plant life. ... Red Sandstone in Wyoming Layered sandstone Sandstone is an arenaceous sedimentary rock composed mainly of feldspar and quartz and varies in colour (in a similar way to sand), through grey, yellow, red, and white. ... Categories: Stub | Sedimentary rocks ... Shale Shale is a fine-grained sedimentary rock whose original constituents were clays or muds. ... The Permian is a geologic period that extends from about 299. ... Loam is soil composed of a relatively even mixture of three mineral particle size groups: sand, silt, and clay. ...
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