Today we come across various non-governmental organizations whose concerns are focused on various areas such as social issues, health issues, and environmental issues.
Eventually, the term came to refer to all Ozark Plateau drainage into the Arkansas and Missouri Rivers. An alternative origin for the name "Ozark" relates the French term aux arcs. In the later 17th and early 18th centuries, French cartographers mapped the Arkansas and Mississippi Rivers.
The large, top most arc or bend in this part of the Arkansas River was referred to as the aux arcs—the top or most northern arc in the whole of the lower Arkansas. Travelers arriving by boat would disembark at this top bend of the river to explore the Ozarks; the town of Ozark, Arkansas is located on the north bank at this location.
Other possible derivations include aux arcs meaning "[land] of the arches,"  in reference to the dozens of natural bridges formed by erosion and collapsed caves in the Ozark region. It is even suggested aux arcs is an abbreviation of aux arcs-en-ciel, French for "toward the rainbows," which are a common sight in the mountainous regions.
After the Louisiana Purchase inAmerican travelers in the region referred to various features of the upland areas using the term Ozark, such as Ozark Mountains and Ozark forests.
By the early 20th century, the Ozarks had become a generic and widely used term. Karst features such as springs losing streamssinkholes and caves are common in the limestones of the Springfield Plateau and abundant in the dolostone bedrock of the Salem Plateau and Boston Mountains. Kept open by periodic fires that limit growth of grasses and forbs in shallow soil, glades are home to collared lizards, tarantulas, scorpions, cacti and other species more typical of the desert southwest.
The Ouachita Mountains to the south rise a few hundred feet higher, but are not geographically associated with the Ozarks. Summits can reach elevations of just over 2, feet m with valleys to 1, feet m deep m to m. Turner Ward Knob is the highest named peak.
Located in western Newton County, Arkansasits elevation is 2, feet m.
Nearby, five unnamed peaks have elevations at or slightly above 2, feet m. Drainage is primarily to the White River, with the exception of the Illinois Riveralthough there also is considerable drainage from the south slopes of the Boston Mountains to the Arkansas River. Although the Springfield formation's surface is primarily Mississippian limestone and chertthe Salem Plateau is older Ordovician dolostones, limestones, and sandstones.
The formations are separated by steep escarpments that dramatically interrupt the rolling hills. Although much of the Springfield Plateau has been denuded of the surface layers of the Boston Mountains, large remnants of these younger layers are present throughout the southern end of the formation, possibly suggesting a peneplain process.
The igneous and volcanic rocks of the Saint Francois Mountains are the exposed remains of a Proterozoic mountain range hundreds of millions of years old.
The remaining hills are the exposed portion of an extensive terrane the Spavinaw terrane in part of granitic and rhyolitic rocks dating from to mya that stretches from Ohio to western Oklahoma. Reef complexes occur in the sedimentary layers surrounding this ancient island.
These flanking reefs were points of concentration for later ore -bearing fluids which formed the rich lead - zinc ores that have been and continue to be mined in the area.Pollinators are featured in issue number six of "GO! Wild" an environmental education activity guide from Rocky Mountain Arsenal National Wildlife Refuge The Schoolyard Habitat program guidebook is a tool that takes teachers and administrators through the process and outlines the steps to creating a.
Apr 05, · It is time to create a new page of “Interesting Wildlife News.” It has been a long time since we have had a new page. The page and comment loading time has become very slow. The Leonardo DiCaprio Foundation is dedicated to the long-term health and wellbeing of all Earth’s inhabitants.
Through collaborative partnerships, we support innovative projects that protect vulnerable wildlife from extinction, while restoring balance to threatened ecosystems and communities. Latest environmental news, features and updates.
Pictures, video and more. AFAM Intro to African American Studies This course provides an overview of African American history and culture.
Topics include major events, persons, and issues spanning the period from the African heritage to contemporary times.
AFAM Intro to African American Studies This course provides an overview of African American history and culture. Topics include major events, persons, and issues spanning the period from the African heritage to contemporary times.