Fig. 4From: Pre-Columbian red pine (Pinus resinosa Ait.) fire regimes of north-central Pennsylvania, USASample number IV2003, a red pine (Pinus resinosa Ait.) remnant which contained the oldest known fire scars in eastern North America. White dashed lines indicate where the two cross-sections pictured at left were removed. This sample spanned the years 1370–1710 and had fire scars (indicated by white arrows) from 19 different fire eventsBack to article page