This choropleth displays the 50 US states and their internal borders, rendered as an SVG using React components. The map turns green, with state boundaries shown as white lines, and individual states highlight in orange on hover. Geographic data comes from the `us-atlas` TopoJSON file, processed with `topojson.feature` and `topojson.mesh`. The visualization uses `d3.geoPath` with the `geoAlbersUsaTerritories` projection to draw each state path. Interactivity is achieved through CSS `:hover` styling on the `.land` class.