Thanks for MN link. Wow...looks like there's no continuity between federal & state stuff?

NOAA (link I provided that was provided by another poster in thread below) is National Oceanic & Atmospheric Administration. They do all the stuff in the air.

http://www.noaa.gov/

So, how do we find a more up-to-date map of US Cors stations in places besides MN? I googled Illinois, but still only see about 10 stations, again in hi-metro areas.