Ok,
Major Newbee here,but what is the DATUM I should be using for my Area? 44.39.48n 123.07.64w(Albany Oregon,nearSalem).I know what they are for,but don't know which one to use. I have tried to research this,and have found three possible answers: WGS84,NAD27,orNAD83(which may all be wrong).As I change them,I get slightly differnt readings,by a few hundred meters.If any one has a link to a page that explains these,that would be great.Thanks in Advance.