This example renders a map of the United States using an Albers projection and SVG paths. It shows state boundary lines overlaid on a landmass shape, with a gray sphere background. The code uses `d3.geoAlbers`, `d3.geoPath`, and `d3.geoGraticule` to project and draw the geography, while `topojson.feature` and `topojson.mesh` extract land and interior boundaries from the US Atlas dataset. React manages the component state to load the data asynchronously via `d3.json`.