Thanks to the data from USDA NRCS National Soil Survey Center, the Africa Soil Information Service (AfSIS), the European Soil Data Center, ISRIC - World Soil Information, and the soil data community for publishing and providing high-quality soil samples and observations, without which it would not have been possible to produce these maps. The Landsat bands were made available, with many thanks, from the University of Maryland's GLAD lab. OpenLandMap-soilDB is based on the Open Soil Spectral Library (OSSL).