Fig. 2
From: Historical fire in the Appalachian Plateau of Ohio and Kentucky, USA, from remnant yellow pines
Fire-scar diagrams for (a) Hatton Ridge, Kentucky, USA, and (b) McAtee Run, Ohio, USA. Each horizontal line represents the years covered by an individual tree (sample number on right). The vertical lines along the timeline of each sample are fire-scar years. Slanted or vertical lines at the earliest year for each sample indicate either the innermost ring or pith date, respectively. For the last year recorded, a slanted line is the outermost ring present, while a vertical line indicates the outermost ring with bark present. The vertical lines on the composite axis indicate years in which one or more sample had a fire scar across the entire site. Samples were collected in 2004 (Hatton Ridge) and 2014 to 2015 (McAtee Run)