This interactive map displays England’s geographical regions using TopoJSON data. The map renders each region as a tan-colored path, with brown interior boundaries between adjacent regions, created using d3.geoNaturalEarth1 and d3.geoPath. Data is fetched via d3.json and processed with topojson.feature and topojson.mesh. The visualization is built in React with SVG output, using d3.v7 and topojson v3.0.2.