I just stumbled across directions on how to overlay Google Earth with US Sectional Aeronautical charts. It took me about 5 minutes to set it up. The reason it came up is that a US Forestry Service Cessna 185 was doing an area recon for us this afternoon. Although he has the same charts in the aircraft that I have in the lookout, I wanted the one chart he has in his aircraft that I do not have in the lookout: the sectional chart. Now I have it. Here is the website:
http://www.wikihow.com/Overlay-Sectional-Aeronautical-Charts-in-Google-Earth I also found a website to figure the magnetic deviation (declination) for any location in the US using ZIP code or LAT/LON. I wanted to relate my fire-finder's true azimuth to the aircraft's magnetic compass. The magnetic deviation here at the lookout is 15.5-degrees east (East is least, West is best). Here is that site:
http://www.ngdc.noaa.gov/geomagmodels/struts/calcDeclination