The dataset contains peat core data from 7 sites in a 1km2 upland (RSPB Forsinard Knockfin Heights) and 7 sites in a 1km2 of lowland (Plantlife Munsary) blanket peatland within the Flow Country, Caithness and Sutherland. Data was obtained between October 2018 and January 2019. Also included is peat depth data from Knockfin Heights at 100m spacing and Teabag Index data to assess peat decomposition rates at 47 points. Full details about this dataset can be found at https://doi.org/10.5285/3458e0b9-5002-4ddb-bcb3-1c7fb08fb70b
