Tualatin River Watershed Information System


Data Overview

This CD contains over 100 spatial data sets (GIS layers). Each layer has a wealth of information (often hidden in attribute and relational tables). The following is an overview of how the data is structured on the cd, and how you can find out pertinent information about each data set.

The geographic data is categorized according to the following subjects

Directory Name Subject Description
bio Biological Fish distribution, stream surveys etc.
envqual Environmental Quality Monitoring station, toxic release sites
geomorph Geomorphology Geology and soils information
hydro Hydrology Streams, hydrologic units
infra Infrastructure Roads, dams, culverts
landcov Landcover / Landuse Veg cover, landuses
polit Political County or city boundaries
region Regional data sets Regional base data
terrain Terrain Digital elevation models, slope aspect, etc.

Use the tree view to the lef to get more information on specific data layers, or to interactively map multiple data layers by selecting a layer and right clicking.


About this project | Directions | Metadata | Data Structure | Partners & Contributors