County-Wide Wetlands Coverage

This map layer is from two different sources. The original source was the National Wetland
Inventory.  The second classification was developed by Thurston Regional Planning Council
from a low level inferred flight  in 1991. Attributes are available for wetland type, source, and 
others related information.

The general accuracy is within 100 feet of true ground location for the county classification
and 200 feet for the National Wetland Inventory.