Data from Bolterdalen and Foxdalen, Svalbard This repository contains geospatial data from 1914 to 2019 of the valleys Bolterdalen and Foxdalen on Svalbard, associated with (and explained further in) Mannerfelt et al., (2024). Its contents are: Shapefiles of geomorphological features Glacier outlines DEMs of the glaciers and their forefields Orthomosaics of the glaciers and their forefields Interpreted GPR measurements; interpolated and as point data. The 2009/2011 DEM has no associated orthomosaic in the repository. This is available as a WMTS service from the Norwegian Polar Institute: https://geodata.npolar.no/arcgis/rest/services/Basisdata/NP_Ortofoto_Svalbard_WMTS_25833/MapServer/WMTS/1.0.0/WMTSCapabilities.xml For more info (or there is an issue with the link), visit: https://geodata.npolar.no/ To cite the dataset, please cite the associated paper: Mannerfelt, E. S., Hodson, A. J., Håkansson, L., and Lovell, H. (2024). Dynamic LIA advances hastened the demise of small valley glaciers in central Svalbard. Arctic Science.