I am not sure what you are after here, Believer. Here is what the American Heritage Dictionary has to say about these two synonyms:
"In their uses to indicate spatial relations,
on and
upon are often interchangeable:
It was resting on (or
upon)
two supports. We saw a finch light on (or
upon)
a bough. To indicate a relation between two things, however, instead of between an action and an end point,
upon cannot always be used:
Hand me the book on (not
upon)
the table. It was the only town on (not
upon)
the main line. Similarly,
upon cannot always be used in place of
on when the relation is not spatial:
He wrote a book on (not
upon)
alchemy. She will be here on (not
upon)
Tuesday."