How Far Away is Your Closest Streamgage?

A map of USGS streamgages and population density shows the proximity of gages to people. In addition, a line chart is overlaid showing the total population within 3 distances from any gage in the US. These distances represent a normal walking distance, biking distance, and driving distance. 6,731,533 people are within walking (< 2km), 106,186,269 within biking (< 6 km) and 299,932,698 within driving (<20km)