The Portland Beavers are a minor league baseball team which plays in Portland, Oregon. It is the only original team left in the league, (even though they've left and came back a few times).
The current Portland Beavers play in renovated PGE Park and are the AAA affiliates of the San Diego Padres.
You can find more information about the Portland Beavers at the Unofficial Portland Beavers Web Page: http://www.pdxbeavers.com