This interactive map of New York State displays all county boundaries with a blue sequential color scale and marks ten major cities with labeled dots. It uses D3.js v7 with TopoJSON to load US states and counties from the us-atlas CDN, filtering features for New York’s FIPS code. The code applies d3.geoMercator projection with fitSize, renders paths via d3.geoPath, and adds hover effects on counties with tooltips showing FIPS codes.