Middle Columbia Corridor Inventory

• Site CS4 - Middle Slough/Whitaker Slough
• Site CS1 - Buffalo Slough Site
• Site CS2 - Portland Airport
• Site CS6 - Little Four Corners
• Site CS3 - Central Columbia River
• Appendices
• Main Report and References
• Site CS5 - Airport Way

Natural Resource Feature Data Correction Request

Report a map error or omission

Natural Resource Inventory GIS Data Request

Request Natural Resource Inventory project GIS data

Natural Resources Inventory Project Report

Natural Resources Inventory Project Report

• Natural Resources Inventory Project Report

NRIU Documents

NRIU Project documents

• Wetland Data Refinement Project
• Natural Resource Inventory GIS Model
• Stream Mapping Project
• Proposed Draft Willamette Natural Resources Inventory: North Reach
• Vegetation Mapping Project
• Middle Columbia Corridor / Airport Economic, Social, Environmental and Energy (ESEE) Analysis

River Plan/North Reach ESEE

• North Reach ESEE