Data source: USDA invasive plant dataset, 2024; dissolved species polygons cleaned for web rendering.
State boundaries: us-atlas TopoJSON (runtime fetch).
APIs / libraries: D3.js, TopoJSON client, Google Fonts.
Projection: D3 Albers USA equal-area composite.
Prompt Cartographer: Ian Muehlenhaus
LLM Tool: Web Mapper
Made with: Web Mapper GPT
Provenance JSON: Open metadata