Oil and Gas Exploration and Production in the State of Kentucky Shown as Quarter-Mile Cells

A cells polygon feature class was created by the U.S. Geological Survey (USGS) to illustrate the degree of exploration, type of production, and distribution of...本单元格多边形要素类由美国地质调查局（U.S. Geological Survey, USGS）创建，用于展示勘探程度、生产类型以及……的分布情况。