Software engineer and illustrator Chris Howard created this map of the presidential election results adjusted by population density to produce The purple election results map. (Photo: Chris ...

Standing in the Galbraith parking lot, Michael Hermann vividly remembers the Rothrock State Forest of two decades ago. For starters, there was no Galbraith parking lot. No trail names, except for that ...

This week, millions of Americans are anxiously scanning air quality maps focusing on two colors: red and purple. Red indicates "unhealthy" air quality, and purple? "Very unhealthy." When did purple ...

Update 5/16/16: The purple “Ad” label in Maps appears to now official. The Google support page has been updated with new screenshots and states, “If someone clicks the purple icon or your ad in the ...