Land Evaluation and Site Assessment (LESA) is a numeric rating system created by the USDA Natural Resources Conservation Service (NRCS) to evaluate a parcel’s relative agricultural importance. The land evaluation (LE) component of a LESA system measures soil quality.1 It is usually based on land capability classes, important farmland classes, soil productivity ratings and/or soil potential ratings. The site assessment (SA) component evaluates other factors that contribute to the site’s agricultural importance, such as parcel size and on-farm investments. SA factors may also consider development pressure and public amenities like wildlife habitat or scenic views. This fact sheet provides basic information about land evaluation and site assessment.