- Dataset: iNaturalist. Ueda K (2026). iNaturalist Research-grade Observations. iNaturalist.org. DOI: 10.15468/ab3s5x
- Map creation: Web Mapper GPT
- Basemap & libraries: Leaflet; Stamen Terrain tiles (CC BY 3.0) served by Stadia Maps; map data © OpenStreetMap contributors; plus PapaParse & Supercluster.
Tip: To use the full US+Canada dataset, swap DATA_URL in script.js to your big CSV
and host the file with a simple web server.