This choropleth map displays COVID-19 cases per department across Argentina, coloring each administrative region on a log scale from purple to light yellow. The visualization uses a Transverse Mercator projection via d3.geoTransverseMercator and renders paths with d3.geoPath in SVG. Interaction includes zooming via d3.zoom and hover effects that change fill color. A legend shows the logarithmic color gradient with a custom axis using d3.axisRight, while the data originates from a TopoJSON file of Argentine departments with case counts. The map also includes a rotated projection centered on the country.