Jef Poskanzer is at it again. This time he has created a mashup between the NOAA's database of the 1,661 hot springs located throughout the USA and of course.. Google Maps. Check out what hot spring is closest to where you live, or if you plan on visiting the US, perhaps adding a visit to one of these bubbling pools of pleasure is in order?
Other Jef Poskanzer Google Maps mashups and tools:
Google Planimeter - Measure Area
Paris Star Forts
Transpac 2005 Tracks