watersheds

[Bob Feeney]

A colleague of mine is looking for watershed maps
or sources of watershed information for:

1) the pacific northwest which would include the
   Columbia River and Snake River watersheds

2) the Mississippi River watershed - this may or
   may not include the Ohio, Illinois, etc.

3) major watershed maps of the U.S.

I know this is pretty extreme but any help would
be appreciated.

feeney at vinny.cecer.army.mil