This visualization displays the locations of US National Parks as glowing dots across a dark map of the United States. It uses the Albers USA projection from `d3.geoAlbersUsa` and renders map features with `d3.geoPath`. Park coordinates are loaded from a CSV file, and each park appears as a small, semi-transparent circle. The map outline and graticule are drawn using `d3.geoGraticule`, while state boundaries come from a TopoJSON file fetched from the `us-atlas` package. The visualization is built with D3.js version 7 and TopoJSON for geographic data processing.