Natural Resources Conservation Service

United States Department of Agriculture

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1997 National Resources Inventory (NRI) Data Collection Instructions

All 1997 National Resources Inventory data gathering instructions are provided in modular form. Each module provides data gathering instructions and data entry procedures.

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Wetlands Data-Exhibits, Cowardian Wetlands Classification System

Plates 1 - 10 (PDF; 2.2 MB)
Plates 11 - 20 (PDF; 3.3 MB)
Plates 21 - 30 (PDF; 2.8 MB)
Plates 31 - 40 (PDF; 3.3 MB)
Plates 41 - 50 (PDF; 2.7 MB)
Plates 51 - 60 (PDF; 3.1 MB)
Plates 61 - 70 (PDF; 3 MB)
Plates 71 - 80 (PDF; 2.9 MB)
Plates 81 - 86 (PDF; 2.2 MB)

Other Information

1997 NRI PSU and Point Edit Rules (PDF; 121 KB)
1997 Special NRI Study Instructions (PDF; 87.6 KB)

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Natural Resources Conservation Service

1997 National Resources Inventory (NRI) Data Collection Instructions

Introductory Materials

Instructions for Collecting Primary Sampling Unit Data Elements

Instructions for Collecting Primary Sampling Unit Point Data Elements

Wetlands Data-Exhibits, Cowardian Wetlands Classification System

Other Information