About Westport 30-Fathom Line

The Westport 30-Fathom Line is a drop-off structure set in the outer exposed waters off Westport, Washington, where the seafloor falls away across a mixed bottom of rock, sand, and broken ground. Depths here run from roughly 150 to 210 feet, marking the transition zone where shallower shelf gives way to deeper water. The mixed substrate and steep contour concentrate marine life along the edge, drawing anglers to the structure where the drop-off breaks. Its outer exposed position means conditions here are governed by open ocean swell and current, with tide movement shaping how bait and fish stack along the ledge. This is a working depth band for those targeting the productive water where the bottom changes character.