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2. Ultisol - Wikipedia

   en.wikipedia.org/wiki/Ultisol

   Ultisol. Ultisol, commonly known as red clay soil, is one of twelve soil orders in the United States Department of Agriculture soil taxonomy. The word "Ultisol" is derived from "ultimate", because Ultisols were seen as the ultimate product of continuous weathering of minerals in a humid, temperate climate without new soil formation via glaciation.

3. List of U.S. state soils - Wikipedia

   en.wikipedia.org/wiki/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. Also, representative soils have been selected for Puerto ...

4. Expanded clay aggregate - Wikipedia

   en.wikipedia.org/wiki/Expanded_clay_aggregate

   Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure. LECA has an approximately round or ...

5. Caliche - Wikipedia

   en.wikipedia.org/wiki/Caliche

   Caliche (/ kəˈliːtʃiː /) (unrelated to the street-slang "Caliche" spoken in El Salvador) is a soil accumulation of soluble calcium carbonate at depth, where it precipitates and binds other materials—such as gravel, sand, clay, and silt. It occurs worldwide, in aridisol and mollisol soil orders—generally in arid or semiarid regions ...

6. Marble Cliff Quarry Co. - Wikipedia

   en.wikipedia.org/wiki/Marble_Cliff_Quarry_Co.

   In 1913, Marble Cliff Quarries Co. was founded and shortly consolidated quarrying activities with the merger of Casparis Stone, Scioto Stone, Kiefer Stone, and Woodruff and Pausch Stone. John W. Kaufman was named president of the company and H.J. Kaufman vice president. [2] The company grew through the expansion of stone grades from one to six ...

7. Geography of Columbus, Ohio - Wikipedia

   en.wikipedia.org/wiki/Geography_of_Columbus,_Ohio

   The Scioto River flows beside downtown Columbus. According to the United States Census Bureau, the city has a land area of 220.04 square miles (569.9 km 2). [1] Unlike many other major US cities in the Midwest, Columbus continues to expand its reach by way of extensions and annexations, making it one of the fastest growing large cities in the nation, in terms of both geography and population ...

8. Claypan - Wikipedia

   en.wikipedia.org/wiki/Claypan

   Claypan. Claypan is a dense, compact, slowly permeable layer in the subsoil. [1] It has a much higher clay content than the overlying material, from which it is separated by a sharply defined boundary. The dense structure restricts root growth and water infiltration. Therefore, a perched water table might form on top of the claypan. [2]

9. Columbus and Franklin County Metro Parks - Wikipedia

   en.wikipedia.org/wiki/Columbus_and_Franklin...

   The quarry was the largest limestone quarry in the United States from its opening in the mid-19th century until its sale around 1985. [22] On November 30, 2021, the first 62-acre section of the park opened to the public and allows for biking, hiking, fishing, rock climbing, canoeing, paddle-boarding, floating boardwalks, a zipline, and a ...