Foreword

Introduction

Acknowledgments

Overview

Water Use

Topography of the County

Geology of the County

Groundwater Availability

Exploration for Groundwater

Karst

Water Quality

Maps and Data

Additional Reading

References Cited

Definitions of Geologic Terms

Rock Descriptions

Discussion from McGrain and Currens (1978)

Green County is in the Mississippian Plateaus Region of south-central Kentucky. It is primarily a limestone plateau area with upland elevations generally in excess of 750 feet. The incised, meandering valley of the Green River traverses the county from east to west and is the most conspicuous topographic feature. Local reliefs of 150 feet between Green River and the adjacent upland are common. Locally, the ridgetops may be flat, but many are narrow. Sinkholes and springs are abundant in the karst area in the vicinity of Big Brush Creek in the northwestern part of the county. Features associated with underground drainage are present in other parts of the county, but are not nearly as conspicuous.

The highest elevations in the county occur on a drainage divide that marks the boundary between Green and Larue Counties. Elevations in excess of 900 feet are common here. The highest elevation, 1,045 feet, is less than a mile south of the point where Ky. 61 crosses the Green-Larue County line. The lowest elevation in the county is approximately 490 feet, the elevation of the Green River where it leaves the county.

The elevation of Greensburg, the county seat, at the junction of U.S. 68 and Ky. 61, is 632 feet. Other elevations are Gabe, 768 feet; Pierce, 803 feet; Summersville, 820 feet; and Thurlow, 817 feet.

The 7.5-minute topographic quadrangle maps that cover Green County are shown, by name and by index code (Kentucky Natural Resources and Environmental Protection Cabinet) on the index map.

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