diff --git a/core/sdg.mcf b/core/sdg.mcf
index 91db1afba..987e12c38 100644
--- a/core/sdg.mcf
+++ b/core/sdg.mcf
@@ -37,6 +37,11 @@ Node: dcid:SDG_HA
 typeOf: dcs:SDG_UnitOfMeasure
 name: "Hectares"
 
+Node: dcid:SamplingStation
+typeOf: schema:Class
+name: "SamplingStation"
+subClassOf: schema:Organization
+
 ## Series
 
 Node: dcid:SDG_AG_FLS_IDX