Soils and archaeological sites are intimately related to the landscape. Investigating soils across past and present landscapes provides a means of reconstructing and understanding the regional environmental and geomorphic context of archaeological site settings and specific site locations, regional site formation processes, and aspects of the resources available to people in a region. Archaeological sites tend to occupy small segments of the landscape, but human activity may affect a much larger area, and in any case, people wander far and wide from sites, interacting with the environment—including the landscape. Thus, no matter whether a site is just a lithic scatter or bone bed or if it is a tell, understanding the regional landscape is an important part of understanding a site and human behavior, and soils are an important means of understanding a landscape. Soils are also important in reconstructing the evolution of landscapes and, consequently, the evolution of archaeological sites. That is, landscape evolution is an important external component of site-formation processes. Landscapes form the physical framework or underpinning for people and their activities and their resulting sites. As landscapes evolve, so do human activities and so do sites. Soils are key to recognizing and interpreting the evolutionary processes that shape the landscape and associated archaeological sites. Furthermore, the concept of landscape evolution also 1) is a logical continuation of the discussion of soil stratigraphy (chapters 5, 6) because it places soil stratigraphy in three or even four dimensions; 2) is a complement to the discussion of soils as environmental indicators (chapter 8), because landscape evolution can be linked to environmental change and because the evolution of the landscape itself, regardless of changes in other factors, represents a change in the environment from a human perspective; and 3) provides yet another means for predicting site locations. The discussion in this section, therefore, represents an integration of some of the principals outlined previously. Some of the studies presented in other chapters, such as the work on the Loess Plateau of China (chapters 6 and 8), and at Harappa and along the Ravi River (chapter 4), are good examples of landscape reconstructions for very large regions and are not repeated here.