County Screen
The flagship. Every county in the lower 48 scored 0–100 against a rubric weighted toward water, timber and access. 2,192 disqualified, 917 ranked. The top 150 are individually clickable — click one and you get its rank, five sub-scores, and the raw numbers behind them.
Eighteen more filters
Well depth, seismic hazard, prime farmland, emergency access, population trajectory, wildfire, water-rights doctrine, radon, growing season, building codes, climate, and metro proximity across four regions. Each is an independent tickbox, so they stack without burying each other.
A written guide
Every layer ships with notes on how to actually use it as a filter and where its data came from. The full set adds four ready-made recipes and an honest account of where the map stops being trustworthy.
Works everywhere Google Earth does
.kmz files for Google Earth Web, Pro or mobile. No account, no plugin, no login, no subscription. Yours to keep.