https://services.arcgis.com/F7DSX1DSNSiWmOqh/arcgis/rest/services/TNC_Lands_-_Public_Layer/FeatureServer
How to find out unique value in each column in attribute table?
Use map viewer on Arcgis web service layer endpoint web page (need gis knowledge but not $$$)
https://services.arcgis.com/F7DSX1DSNSiWmOqh/ArcGIS/rest/services/TNC_Lands_-_Public_Layer/FeatureServer/0