SAWGraph Spatial KG Graph
The SAWGraph Spatial KG as an RDF (Turtle) graph. It contains all Level 13 grid cells from the S2 grid together with administrative regions of levels 1 to 3 (states, counties, and county subdivisions) and the spatial relationships between them for the 48 contiguous U.S. states. S2 grid cells and state/county geometries are taken from KnowWhereGraph, and county subdivisions are sourced from the US Census Bureau. The graph is served through the SAWGraph Spatial KG SPARQL and Triple Pattern Fragments endpoints.