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Tag Archives: limestone

The Missouri State Fair is Almost Here!

Visit the Missouri Department of Natural Resources at the Missouri State Fair Aug. 8-18, 2013, in Sedalia

The Missouri Geological Survey is marking 160 years of service to Missourians this year, so be sure to stop by the Womans Building to see our special anniversary exhibit and our impressive display of rocks, minerals and fossils.  The Womans Building is #14 on this map.  We are located near the Pepsi Grandstand.

Missouri State Fair Aug. 8-18, 2013

Missouri Department of Natural Resources staff and exhibits will be available from 9 a.m. to 5 p.m. every day during the Missouri State Fair.  In addition to our special geology exhibits, we have a number of activities planned:




Meet us at the Fair!

The Missouri State Fair — August 9-19, 2012

Meet us at the Fair!

The Missouri State Fair began Thursday, Aug. 9 in Sedalia.   Stop by the historic Womans Building to see our impressive display of rocks, mineral and fossils.  The Womans Building is #13.  We are near the Pepsi Grandstand. See a map of the Fairgrounds.  –Joe  

Missouri geology makes a great trout stream

Limestone is important to fish and aquatic life

Rainbow Trout

Wild Rainbow Trout from one of Missouri's Blue Ribbon Trout Streams. Photo by Larry "Boot" Pierce.

Missouri’s geology consists of an abundant amount limestone.  This underlying bedrock and highly weathered karst landscape has produced some of the largest springs and best trout stream habitat in the Midwest.

An especially wonderful characteristic of limestone chemistry is its ability to buffer acids, including acidic rainwater. This is important to fish and aquatic life because it helps protect against rapid changes in pH. As rainwater infiltrates into the ground and becomes groundwater, the limestone and slightly acidic rainwater react. The result is decreased water acidity while at the same time the dissolving away of small amounts of limestone, thus creating a karst landscape and springs for which the Ozarks are famous.

In addition to the benefits of the buffered water, the springs and spring creeks below them have a much more consistent year-round water temperature. This constant temperature allows for a steady growing cycle for trout food sources such as macro invertebrates and other smaller fish.

Yelton Spring in Phelps County

Yelton Spring in Phelps County, Missouri. Photo by Larry "Boot" Pierce.

See photos from Trout Season opening day at Bennett Spring, Roaring River and Montauk state parks.

Read more about Missouri limestone, Missouri caves and Missouri karst landscapes in The Geologic Column of Missouri. –Joe






Natural Arches and Bridges in Missouri

Outstanding Features!

Clifty Natural Bridge

Clifty Natural Bridge, Missouri Department of Conservation photo

Did you know Missouri has more than 85 natural arches, bridges, and tunnels?  While these are not the majestic spans that one would expect of find in the yellow-red sandstones in western states, they do represent some very neat geology and they are all located right here in Missouri.

Karst geologic conditions have created the perfect environment for the creation of these natural features in the state’s limestone, dolomite and sandstone bedrock.  Natural arches, bridges and tunnels can be just about any size, shape, height or width and no two are alike.  Local legend has it that one of these features was even used by Blackbeard the Pirate to hide treasure!

Some outstanding examples of these features can be seen in Missouri’s recreation areas and state parks.  Why not see for yourself and visit Rock Bridge Memorial State Park, Bennett Spring State Park, Clifty Creek Natural Area or Kaintuck Hollow.

More information can be found in the publication, Geologic Wonders and Curiosities of Missouri or by visiting our website –Joe

Taking the “lime” out of limestone

Did you know Missouri is the number one producer of lime in the United States?

Fossiliferous LimestoneMissouri industries produce nearly 2.5 million tons of lime each year at a value of approximately $237 million. This equates to more than 18 percent of U.S. production. Due to the large domestic production, lime is one of a few of more than 60 mineral commodities produced in the U. S. that is not necessary to import. The U.S. actually exports more than 160,000 tons each year.

There are literally thousands of uses for lime that impact our daily lives. Uses range from the manufacture of paper, plastics, rubber, glass, steel and other metals, to treating and cleaning water, wastewater, and air emission in the process of using fossil fuels. It serves a myriad uses in the food industry including the reduction of carbon dioxide produced by stored fruits and vegetables, thereby lengthening their storage time. Used in the production of milk and milk products such as butter, lime is also found in baby food, stomach antacid and tooth paste. Interestingly enough, all quality tortillas and corn chips are treated with lime. So the next time you have a really good tortilla, remember which lime really gave it that special flavor.

Learn more by reading this U.S. Geological Survey report about lime production in the U.S. and see the lime commodity statistics page.

Read more about limestone in our Winter 2012 issue of Missouri Resources Magazine.  Also see the Geologic Column of Missouri and learn more about other industrial minerals in Missouri.  –Jerry


Missouri Hosts a Robust Limestone Industry

Limestone:  Missouri’s Billion Dollar Industry

Limestone in Missouri

Missouri hosts a robust limestone industry that mines rock and processes it into a variety of vital products for the state, the nation and the world.  Missouri limestone has been used as dimension and ornamental stone in many buildings across the United States including the U.S. Department of Commerce building, the Library of Congress, the National Archives and Missouri’s own state capitol.

Limestone Limestone known as “Carthage Marble,” perhaps the most widely recognized of Missouri’s marbles has been extensively used across the nation and can be seen on the campuses of the University of Michigan, Stanford University, the University of Notre Dame and Missouri State University.  Read more in Missouri Resources Magazine.  Also see the Geologic Column of Missouri. and learn more about other industrial minerals in Missouri–Joe