Does clear cutting forests and building cities change difficult grades, rock formations and elevations? I think your finding of bones argument does not hold any water regardless and it also does not address anything I have said about it....... Are we in the war room? I ask because over here its just about conversation and you seem to be arguing. Our only real disagreement is I disagree with your certainty about the subject (that you don't seem to have researched much). Think about it this way. Of the two of us only one of us is certain they are right. You see to be taking exception to my open mind on the subject.