The mining footprint dataset includes over 650 digitized polygons totaling 1200 square kilometers with a mean size of 1.8 sq kms. The footprints have been summarized at the watershed (USGS HUC10 – mean area 688 sq kms) scale across Alaska and at the coarse scale, sub-sub drainage unit (mean area 16,000 sq kms) within Canada. This dataset could help inform decisions regarding natural resource monitoring, identifying potential mitigation/restoration sites, and for conservation planning at watershed scales.