This map of the United States visualizes state boundaries as tan-colored polygons on a black background, with a white hover effect to highlight individual states. The visualization is built with D3 v5 and TopoJSON, using the `geoAlbersUsa` projection and `geoPath` to transform geographic data from the us-atlas counties-10m JSON file into SVG paths. State names are retrieved from the TopoJSON feature properties and displayed as tooltips on hover.