Soil structure English applies to jurisdiction: United States of America determination method: work of the federal government of the United States determination
Attribution-Share Alike 4.0 truetrue English Basic diagram of a generic soilprofile, with O, A, B and C horizons. author name string: Pallasite1 Wikimedia
English Harney soilprofile from the USDA-NRCS applies to jurisdiction: United States of America determination method: work of the federal government of
Picture of Tokul Soil from the Natural Resources Conservation Service website [ftp://ftp-fc.sc.egov.usda.gov/NSSC/StateSoil_Profiles/wa_soil.pdf] {{PD-USGov-USDA-NRCS}}