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Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA

Data and software for journal article: Relative prediction intervals reveal larger uncertainty in 3D approaches to predictive digital soil mapping of soil properties with legacy data


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Nauman, T.W. and Duniway, M.C., 2019, Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA: U.S. Geological Survey data release,


The raster datasets in this release are maps of soil surface properties that were used in analyzing different approaches for digital soil mapping. They include maps of soil pH, electrical conductivity, soil organic matter, and soil summed fine and very fine sand contents that were created using both 2D and 3D modeling strategies. For each property a map was created using both 2D and 3D approaches to compare the mapped results.


Point of Contact :
Travis W Nauman
Originator :
Travis W Nauman, Michael C Duniway
Metadata Contact :
Travis W Nauman
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Southwest Biological Science Center
USGS Mission Area :

Attached Files

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4.09 GB
5.97 GB
3.48 GB
7.81 GB
3.13 GB
3.02 GB
4.65 GB
4.25 GB
“Software Metadata”
6.73 KB


The purpose of these data are to demonstrate predictive soil mapping methods. The maps also have utility for land managers who need information on surface soil properties in the Upper Colorado River Basin.


The author(s) of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9YBAKC2

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