On Mon, 29 Jan 2001, Stalzer, Robert wrote: > (3) As you may suspect, the 9-digit code would be perfect for determining a > site's sundial parameters, if only one could find the correspondence between > the code and some GPS-style coordinates. Most of us don't know our house's > 9-digit zip code, but starting with a street address, a diallist can visit > www.usps.gov and find the postal service's 9-digit zip code for the address; > this pinpoints the site. Commercial software is available that can then > convert the 9-digit zip code to latitude/longitude with (probably) enough > accuracy for dialmaking. A final point: the 9-digits themselves do not > contain any encoded or embedded information regarding latitude/longitude; > that's why a database lookup is necessary.
Go to http://www.mapblast.com and enter the ZIP+4, then CreateMap. It will return a map and lat/lon, but ot the precise street address. Conversely, if you enter a full address, it will return the ZIP+4 also... Dave 37.29 N 121.97 W
