<svg viewBox="0 0 975 610">
<g fill="none" stroke="#000" stroke-linejoin="round" stroke-linecap="round">
<path stroke="#aaa" stroke-width="0.5" d="${path(topojson.mesh(us, us.objects.counties, (a, b) => a !== b && (a.id / 1000 | 0) === (b.id / 1000 | 0)))}"></path>
<path stroke-width="0.5" d="${path(topojson.mesh(us, us.objects.states, (a, b) => a !== b))}"></path>
<path d="${path(topojson.feature(us, us.objects.nation))}"></path>
</g>
</svg>