3/15/2009, 1:00 p.m. PDT
The Associated Press

PORTLAND, Ore. (AP) - Oregon surveyors are celebrating National Surveyor's Week by cleaning up and improving the Willamette Stone State Heritage Site in the west hills of Portland.

The Willamette Stone was a small stone obelisk that marked the "initial point" of the Willamette Meridian. All land surveys and property descriptions in Oregon and Washington state are referenced to this point.

To read the rest of this OregonLive.com article, visitwww.oregonlive.com/newsflash/index.ssf?/base/news-30/12371477665410.xml&storylist=orlocal#continue