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It is the lowest member of the Beattie Limestone formation and commonly outcrops within the deep valleys and on top of the scenic residual ridges of the Flint Hills. This important building stone, quarried in the Cottonwood River valley, had been used under the names "Cottonwood stone" or "Cottonwood Falls limestone" many years before the name ...
Explorer Zebulon Pike first coined the name the Flint Hills in 1806 when he entered into his journal, "passed very ruff flint hills". The underlying bedrock of the hills is a flinty limestone. The largest town in the area is Manhattan, Kansas, and the hills can be accessed from the Flint Hills Scenic Byway, which passes through the region.
Plumes of steam rise above the Pine Bend oil refinery in Rosemount, Minnesota, run by Flint Hills Resources, a subsidiary of Koch Industries. Flint Hills Resources LP, originally called Koch Petroleum Group, is a refining and chemicals company based in Wichita, Kansas. It sells gasoline, diesel, jet fuel, ethanol, polymers, intermediate ...
In 2006 the plant underwent a "$350 million project to produce a diesel fuel containing substantially less sulfur." [6]In 2012 the company proposed to the Environmental Protection Agency (EPA) a $400 million upgrade to help move the refinery "closer to its processing capacity of 320,000 barrels of crude per day and also reduce emissions of nitrogen oxide and sulfur dioxide".
Unbound Gravel, formerly known as the Dirty Kanza, is an event comprising gravel racing covering various distances held annually during the late spring on rural roads in the Flint Hills region of the Great Plains around Emporia, Kansas, United States.
The Flint Hills Discovery Center is a municipal heritage and science center located in the city of Manhattan, Kansas. Featured within the facility are exhibits detailing local history and preservation of the Flint Hills , a theater, a specialized interactive playground for youth and parents, and a temporary exhibition gallery.
Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, [1] [2] categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires. Flint occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones.
The hills on either side of the valley are composed of bedrock of the Upper Mercer and Pottsville series. The use of Upper Mercer flint by prehistoric people was first reported in 1945. The flint was quarried and used to make stone tools. The site is 15 feet above the Walhonding River floodplain.