‡Farmland of statewide importance has a slightly higher slope or lower ability to store moisture.
§Unique farmland has lesser quality soils but produces the state's leading crops. Prime, statewide importance, and unique farmland must have had agricultural use in the past four years.
|Farmland of local importance is defined by county, and may include grazing lands, unirrigated croplands, and small orchards or vineyards.
¶Grazing land has vegetation suited for livestock grazing and a minimum mapping unit of 40 acres.
#Other land includes forested areas, wetlands, mining areas, and major government lands without agricultural uses.