An ecological site (Figure 1) is an area of land with a combination of soil, climatic, topographic, and natural vegetation features that set it apart significantly from adjacent areas. Ecological sites are ex-pressed in terms of soil depth, topography, slope, plant production, and plant composition. Vegetation on a particular site will vary in composition and production from one geographical region to another and from year-to-year because of changes in precipitation. The following descriptions of plant composition represent the assumed pre-European settlement conditions under the influence of periodic fire followed by herbivory.

Ecological Sites consists of:

Loamy Bottomland | Loamy Prairie | Deep Savanna | Shallow Savanna | Deep Sand
Hardland or Claypan Prairie | Shallow or Rocky Prairie | Clay Prairie | Breaks
Similarity Index

Printable forms of these ecological sites can be accessed at this .pdf site: 4th Edition of The Manual of the National Range Judging Contest: Judging Rangeland for Livestock and Wildlife Values