The construction of the A1 (M) Darrington to Dishforth DBFO road scheme has provided an important opportunity to investigate landscape development over time in parts of West and North Yorkshire. Over 60 archaeological sites were investigated in advance of, and alongside, the massive engineering works in one of the largest programmes of archaeological fieldwork seen in the UK. The most significant results, including a Beaker burial and an Iron Age chariot burial from Site D (Ferry Fryston), a large-scale Iron Age settlement at Site M near Micklefield, and a high-status medieval settlement at Site 16 (Wetherby Lane), are presented here in this monograph.