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The geology of Kentucky formed beginning more than one billion years ago, in the Proterozoic eon of the Precambrian. The oldest igneous and metamorphic crystalline basement rock is part of the Grenville Province, a small continent that collided with the early North American continent.
West Virginia joined Kentucky and Utah, which also recognize coal as a state mineral or rock. The drive to name coal as an official state symbol was initiated by a high school student from Wharncliffe, West Virginia , who initiated her project at a school fair and collected 2,500 signatures on a petition that was submitted to legislators.
USGS physiographic map of Kentucky showing the location of the Knobs. The Knobs Region or The Knobs is located in the US state of Kentucky. It is a narrow, arc-shaped region consisting of hundreds of isolated hills. The region wraps around the southern and eastern parts of the Bluegrass region in the north central to northeastern part of the state.
Kentucky's regions (click on image for color-coding information) Kentucky can be divided into five primary regions: the Cumberland Plateau in the east, which contains much of the historic coal mines; the north-central Bluegrass region, where the major cities and the state capital (Frankfort) are located; the south-central and western Pennyroyal Plateau (also known as the Pennyrile or ...
The Mississippian Borden Formation is a mapped bedrock unit in Kentucky, Indiana, Illinois, Ohio, West Virginia, [7] and Tennessee. It has many members, which has led some geologists to consider it a group (for example in Indiana [8]) rather than a formation (for example in Kentucky [1] [4]).
Near the Tri-Cities, rockhounding is popular along the Columbia River, Horse Heaven Hills, Saddle Mountains, Bickleton and the Ginkgo Petrified Forest State Park. Rockhounding on WA DNR-managed land
The Red River Gorge is a canyon system on the Red River in east-central Kentucky, United States.Geologically it is part of the Pottsville Escarpment.. The gorge lies within the Daniel Boone National Forest and was subsequently designated the Red River Gorge Geological Area, an area of around 29,000 acres (12,000 ha; 120 km 2; 45 sq mi). [1]
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