This dataset contains measurements of greenhouse gas exchange (carbon dioxide and methane) over a site restored from plantation forest to peat in 2003/2004, in the Flow Country, Caithness and Sutherland. It contains eddy-covariance and associated meteorological and pedological measurements from 2014-07-08 14:30 to 2022-12-31 at half-hourly intervals. The carbon dioxide time series has been gap-filled to allow the calculation of annual budgets for carbon exchange. The site reference is UK-LNS ( http://www.europe-fluxdata.eu/home/sites-list ).