Description: stratum: fringe or flatregion: woc (washington outer coast), wby (willapa bay), ghb (grays harbor), cps (central puget sound), hdc (hood canal), swh (saratoga-whidbey), nps (northern puget sound), sjs (san juan straights), sps (south puget sound).sitecode: region and the site number for each polygon.site_name: geographic description of the polygon.shape_area: area of the polygon.shape_len: perimeter of the polygon.