term,name,definition,category,provenance,provenance_uri,note soilHole,Soil hole,"A small excavation into soil at the top few meters of earth surface. Soil generally includes some organic matter derived from plants. Soil holes are created to measure soil composition and properties. Sometimes electronic probes are inserted into soil holes to measure physical properties, and (or) the extracted soil is analyzed.",Land Sites,Adapted from USGS Site Types.,,http://wdr.water.usgs.gov/nwisgmap/help/sitetype.html