The 8-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the fourth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with … Continued
The 10-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the fifth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with … Continued
The 12-Digit Hydrologic Units, a component of the Watershed Boundary Dataset (WBD), depict the sixth level hydrologic subdivision of the United States. A hydrologic unit can accept surface water from upstream drainage areas and may define a drainage area with … Continued
Surface Percent Organic Matter shows the percentage of the surface layer of soil that is comprised of plant and animal residue.
Surface Texture is based on the composition of sand, silt, and clay in the surface layer of soil based on the standard soil triangle definition.
Forest Productivity – Top Species/Tree Types depicts the most productive tree species or type based on soil characteristics.
The Soil Boundaries have been updated to the October 2019 NRCS SSURGO data release.
Hydrologic Soil Group, which estimates potential runoff from precipitation based on soils characteristics, has been updated to the October 2019 NRCS SSURGO data release.
Farmland Class, which shows prime and important farmland, has been updated to the October 2019 NRCS SSURGO data release.
Slope Gradient, depicting the steepness of the landscape by soil type, has been updated to the October 2019 NRCS SSURGO data release.