The dataset is a geospatial collectionof points that correspond with the presence or absence of the Natura 2000 habitat type <code>7220</code>(Petrifying springs with tufa formation ( Cratoneurion )) in springs andstreaming water segments in the Flemish and Brussels CapitalRegion, Belgium. The dataset also contains a number of locations that were visited duringmapping projects but where <code>7220</code> was foundabsent,or where additional survey is neededto decide on presence/absence of thehabittype. The file is aGeoJSONformatRFC7946 (WGS84). The data source is produced, owned and administered by the Research Institute for Nature and Forest (INBO, Department of Environment of the Flemish government). Headers are: <code>id</code>; <code>source</code>: original data source; <code>validity status</code>: field inventory carried out (<code>gecontroleerd</code>) or not (<code>niet gecontroleerd</code>); <code>name</code>: unique name of the site; <code>system_type</code>: stream type (<code>rivulet</code>), mire type (<code>mire</code>), unknown (<code>unknown</code>) orna (<code>NA</code>); <code>habitattype</code>: <code>7220</code>, no Natura 2000 type <code>(gh)</code>, unconfirmed <code>7220</code> <code>(7220, gh)</code>, alkaline fen<code>(7230)</code>; <code>unit_id</code>: spatially related sites are identified by a common identifier <code>area_m2</code>: area in square meters; <code>year</code>: year of field inventory; <code>sbz</code>: inside (1) or outside (0) special area of conservation; <code>geometry</code>: latitude, longitude in decimal degrees. ; system_type and unit_id have been added compared to the previous version.