The Natural Resources Conservation Service provides a range of documents and materials to stakeholders from the private sector, government agencies, journalists, and scholars. One of their projects is the National Resources Inventory (NRI), which produces maps and charts based on their surveys. On this site, visitors can look over these documents, which are divided into eleven different themes, including "Soil Erosion", "Wetlands", and "Land Capability". Each thematic area contains several dozen maps, and a brief description of what each map illustrates. Much of the data is static, and derived from historical data from the late 20th century, but that doesn't detract from their relevance or usability. The site is rounded out by a "Help" area, and information on some of their other resources.