This is the dataset used is the Thompson et al paper ‘Variations in tephra stratigraphy created by small-scale surface features in sub-polar landscapes’ The data is separated into the relevant folders, with grain size data for H1947 and G2011 (from a combination of laser diffracted measurements and sieved), as well as thickness measurements and control thickness measurements. Details about the control measurements sites can be found in the supplementary information of the paper. Details about the rest of the data are presented in both the manuscript and the supplementary information.