This map visualizes Portland neighborhoods using a conic equal-area projection, rendering geographic boundaries as SVG paths from a TopoJSON dataset. The code leverages D3’s `geoConicEqualArea` and `geoPath` for projection and path generation, with React managing the component structure. The dataset is loaded via `d3.json` from a GitHub gist, and the resulting paths are styled with a teal stroke, displaying the city’s neighborhood outlines without additional thematic encoding.