Today, Atlantic Cities points out that the U.S. Geological Survey (USGS) has published a map of lightning strikes in the U.S. According to the description of the map in the Google Maps Gallery, the map is organized by county and represents incidents over “the years 1995-2000 and 2001-2009.” The darker the shade of red, the more “events” have occurred, and the map breaks down each county’s data in terms of total number of injuries, fatalities, cost of property damage, and cost of crop damage.