The Terrestrial Ecological Unit Inventory Geospatial Toolkit (TEUI Toolkit) is an ArcGIS extension that assists users in mapping and analyzing landscapes using geospatial data. The Toolkit accelerates the TEUI and Soil Survey mapping process, but can also be used for other natural resource mapping efforts. The Toolkit utilizes raster data (e.g., slope, aspect, elevation), polygon data (e.g., map units), and point data (e.g., soil pedon or vegetation plots), to calculate zonal statistics and display the results in both a tabular and graphical format. The TEUI Toolkit was developed and is maintained by the USFS Remote Sensing Applications Center in Salt Lake City, UT.

The TEUI Toolkit can use any continuous or discrete raster data provided that it is numeric. Some examples include: slope, aspect, elevation, temperature, precipitation, and curvature. To use thematic data like geology, you will have to convert each symbol to a number. You can import your own polygons, import SSURGO linework, or create polygons from scratch. The TEUI Toolkit (version 4.1) no longer requires data from RSAC, so you are free to use data from any source. When you are working on USFS land, the USFS Remote Sensing Applications Center can provide you data for your project area.

The TEUI-Geospatial Toolkit can be used by anyone who wants to analyze and perform zonal statistics on raster type data using polygons or point data (feature class, shapefile, or coverage). While the TEUI-Geospatial Toolkit was developed for the mapping and analysis of Terrestrial Ecological Units, the TEUI-Geospatial Toolkit can also be used to analyze and/or map any natural phenomena that can be represented by polygons or points. Non-TEUI projects have included range analysis, watershed analysis, TES analysis, vegetation mapping, wildlife habitat, scenic areas, and soil mapping.