Arkansas's source for geological information and mapping including the State's mineral, fossil fuel, water resources and geological hazards.

Geologic Map Of The Ouachita Mountain Region And A Portion Of The Arkansas Valley Region In Arkansas DGM-LRSIX-002 Geologic Map Of The Metropolitan Little Rock, Arkansas Area

The geology of Arkansas includes deep 1.4 billion year old igneous crystalline basement rock from the Proterozoic known only from boreholes, overlain by extensive sedimentary rocks and some volcanic rocks.

Information on the geologic history of Arkansas, geological facts about Arkansas, field trips and description of 3 major categories of rocks: igneous rock, metamorphic rock, or sedimentary rock.

The mission of the Office of the State Geologist (OSG) is to increase knowledge of Arkansas’s geology and to stimulate the orderly development and usage of the state’s mineral, water, and fossil fuel resources, while protecting the environment.

The Arkansas Geological Survey serves the people of Arkansas by providing geological information in order to develop and enable effective management of the State’s mineral, fossil fuel and water resources while protecting the environment.

Arkansas's regions are defined using many different criteria. Distinct natural regions of Arkansas include The Ozarks, Ouachita Mountains, Arkansas River Valley, Gulf Coastal Plain, Crowley's Ridge, the Arkansas Delta, Arkansas Timberlands, and Central Arkansas.

Feb 7, 2025 · The Arkansas Geological Survey (AGS), formerly the Arkansas Geological Commission (AGC), is a division of the Arkansas Department of Energy and Environment (ADEE) charged with the investigation of the geology, geologic processes, and geologic resources of …

The Arkansas Geological Survey (AGS), formerly the Arkansas Geological Commission (AGC), is a government agency of the State of Arkansas. It is responsible for the investigation of the geology, geologic processes, and geologic resources within the state.

Nov 5, 2018 · Arkansas’s geographical makeup is varied and unique. Geologists have classified five physiographic regions within the state – the Ozark Plateau, the Arkansas River Valley, the Ouachita Mountains, the West Gulf Coastal Plain, and the Mississippi River Alluvial Plain.