The West Virginia State Code states that the boundary lines between the counties of the state are sourced from the U.S. Geological Survey (USGS) (1:24,000 scale) topographic quadrangle maps. The West Virginia Department of Environmental Protection (WVDEP) digitized county boundary lines off of USGS 1:24,000-scale Digital Raster Graphics (DRG, scanned topographic maps), and published the "24k" county boundary in January 2002.

County boundary lines rarely change, and any changes made will be only as a result of court orders or similar actions by similar authorities. The Circuit Court of Lincoln County handed down such an order in April of 2016. A formerly straight portion of the boundary between Lincoln and Logan counties near Harts, WV now follows the low water mark of the Guyandotte River between 38.007447 N, 82.071527 W, and 38.009450 N, 82.064067 W.

The WVGISTC revised the Lincoln / Logan GIS boundary features in 2022 according to the court order of 2016 and including the two reference points stated in the order. The WVGISTC also reviewed the boundaries of all 55 WV counties and corrected areas of significant deviation from the "24K" DRG boundary lines.