Oxisols
Very highly weathered soils of the tropics
Soil order · 61 established series in the classification database
Oxisols cover 490,795 acres of mapped U.S. soils — <0.1% of all series acres, the 12th largest of the twelve orders — across 61 mapped series.
Median solum thickness in their typical pedons is 152 cm, with the first B horizon at 24 cm. Official descriptions of Oxisols go down a median 152 cm.
Largest Oxisols series
Mapped acres in current SSURGO data, across all series in the order.
Oxisols on this site
1 Oxisols series profiled here, largest first, drawn at one depth scale.