This example displays an interactive SVG map of New York State’s counties, rendered in light gray with black borders that highlight in light blue on hover. It uses D3 v3 with the Albers projection and `d3.geo.path` to draw the geographic features, filtered from a TopoJSON file by state FIPS code 36. The map loads county boundaries from a remote GitHub-hosted dataset, while an accompanying test file defines a tooltip with `d3.tip` for potential data annotations.