National Mapping Program Technical Instructions Part 3 Attribute Coding Standards for Digital Line Graphs U.S. Department of the Interior U.S. Geological Survey National Mapping Division Standards for Digital Line Graphs Part 3: Attribute Coding CONTENTS Page 3. Attribute Coding ......................... 3.0-1 3.0 General Principles ..................... 3.0-3 3.0.1 Coding Structure .................. 3.0-4 3.0.1.1 Major Code Description .......... 3.0-5 3.0.1.2 Minor Code Description .......... 3.0-5 3.0.2 Coding Description ................. 3.0-7 3.0.3 How to Measure a Feature .............. 3.0-8 3.0.4 Where To Digitize Features .............3.0-10 3.0.4.1 Lines ..................3.0-11 3.0.4.2 Areas ..................3.0-11 3.0.4.3 Degenerate Lines and Nodes ........3.0-11 3.0.5 Symbol Hierarchy and Symbol Suppression on the Map .3.0-11 3.0.6 Common Attribute Codes ...............3.0-12 3.0.6.1 Outside Area (000 0000) .........3.0-12 3.0.6.2 Void Area ................3.0-12 3.0.6.3 Processing Line (XX0 0299) ........3.0-13 3.0.6.4 Photorevised Features (XX0 0000) .....3.0-13 3.0.7 How Names and Labels Affect the Codes .......3.0-14 3.0.8 Record of Attribute Codes .............3.0-17 Appendix 3.0.A Feature Labels and Associated Attribute Codes ................. 3.0.A-1 Appendix 3.0.B Comprehensive List of Attribute Codes . 3.0.B-1 3.1 Hypsography--Major Code 020 ................ 3.1-1 3.1.1 General Principles ................. 3.1-1 3.1.1.1 Node Attribute Codes ........... 3.1-1 3.1.1.2 Area Attribute Codes ........... 3.1-1 3.1.1.3 Line Attribute Codes ........... 3.1-1 3.1.1.4 Single-Point Attribute Codes ....... 3.1-2 3.1.1.5 General Purpose Attribute Codes ..... 3.1-3 07/95 3-ii Standards for Digital Line Graphs Part 3: Attribute Coding 3.1.1.6 Descriptive Attribute Codes ....... 3.1-3 3.1.1.7 Parameter Attribute Codes ........ 3.1-3 3.1.1.8 List of Hypsography Attribute Codes ... 3.1-5 3.1.2 Node Attribute Codes ................ 3.1-7 3.1.3 Area Attribute Codes ................ 3.1-7 3.1.4 Line Attribute Codes ................ 3.1-7 3.1.5 Single-Point Attribute Codes ............3.1-10 3.1.6 General Purpose Attribute Codes ..........3.1-10 3.1.7 Descriptive Attribute Codes ............3.1-11 3.1.8 Parameter Attribute Codes .............3.1-12 3.2 Hydrography--Major Code 050 ................ 3.2-1 3.2.1 General Principles ................. 3.2-1 3.2.1.1 Node Attribute Codes ........... 3.2-5 3.2.1.2 Area Attribute Codes ........... 3.2-5 3.2.1.3 Line Attribute Codes ........... 3.2-7 3.2.1.4 Single-Point Attribute Codes ....... 3.2-9 3.2.1.5 General Purpose Attribute Codes ..... 3.2-9 3.2.1.6 Descriptive Attribute Codes ....... 3.2-9 3.2.1.7 Parameter Attribute Codes ........ 3.2-9 3.2.1.8 List of Hydrography Attribute Codes ...3.2-10 3.2.2 Node Attribute Codes ................3.2-14 3.2.3 Area Attribute Codes ................3.2-15 3.2.4 Line Attribute Codes ................3.2-24 3.2.5 Single-Point Attribute Codes ............3.2-27 3.2.6 General Purpose Attribute Codes ..........3.2-29 3.2.7 Descriptive Attribute Codes ............3.2-43 3.2.8 Parameter Attribute Codes .............3.2-47 Appendix 3.2.A Attribution of the Outlines of Hydrographic Areas ........... 3.2.A-1 3.3 Vegetative Surface Cover--Major Code 070 .......... 3.3-1 3.3.1 General Principles ................. 3.3-1 3.3.1.1 Node Attribute Codes ........... 3.3-1 3.3.1.2 Area Attribute Codes ........... 3.3-1 07/95 3-iii Standards for Digital Line Graphs Part 3: Attribute Coding 3.3.1.3 Line Attribute Codes ........... 3.3-1 3.3.1.4 Single-Point Attribute Codes ....... 3.3-1 3.3.1.5 General Purpose Attribute Codes ..... 3.3-1 3.3.1.6 Descriptive Attribute Codes ....... 3.3-1 3.3.1.7 Parameter Attribute Codes ........ 3.3-2 3.3.1.8 List of Vegetative Surface Cover Attribute Codes ............. 3.3-3 3.3.2 Node Attribute Codes ................ 3.3-4 3.3.3 Area Attribute Codes ................ 3.3-4 3.3.4 Line Attribute Codes ................ 3.3-5 3.3.5 Single-Point Attribute Codes ............ 3.3-5 3.3.6 General Purpose Attribute Codes .......... 3.3-5 3.3.7 Descriptive Attribute Codes ............ 3.3-5 3.3.8 Parameter Attribute Codes ............. 3.3-5 3.4 Non-vegetative Features--Major Code 080 .......... 3.4-1 3.4.1 General Principles ................. 3.4-1 3.4.1.1 Node Attribute Codes ........... 3.4-1 3.4.1.2 Area Attribute Codes ........... 3.4-1 3.4.1.3 Line Attribute Codes ........... 3.4-1 3.4.1.4 Single-Point Attribute Codes ....... 3.4-1 3.4.1.5 General Purpose Attribute Codes ..... 3.4-2 3.4.1.6 Descriptive Attribute Codes ....... 3.4-2 3.4.1.7 Parameter Attribute Codes ........ 3.4-2 3.4.1.8 List of Non-Vegetative Features Attribute Codes ............. 3.4-3 3.4.2 Node Attribute Codes ................ 3.4-4 3.4.3 Area Attribute Codes ................ 3.4-4 3.4.4 Line Attribute Codes ................ 3.4-5 3.4.5 Single-Point Attribute Codes ............ 3.4-5 3.4.6 General Purpose Attribute Codes .......... 3.4-5 3.4.7 Descriptive Attribute Codes ............ 3.4-5 3.4.8 Parameter Attribute Codes ............. 3.4-5 3.5 Boundaries--Major Code 090 ................. 3.5-1 07/95 3-iv Standards for Digital Line Graphs Part 3: Attribute Coding 3.5.1 General Principles ................. 3.5-1 3.5.1.1 Node Attribute Codes ........... 3.5-1 3.5.1.2 Area Attribute Codes ........... 3.5-1 3.5.1.3 Line Attribute Codes ........... 3.5-2 3.5.1.4 Single-Point Attribute Codes ....... 3.5-2 3.5.1.5 General Purpose Attribute Codes ..... 3.5-3 3.5.1.6 Descriptive Attribute Codes ....... 3.5-3 3.5.1.7 Parameter Attribute Codes ........ 3.5-3 3.5.1.8 List of Boundaries Attribute Codes .... 3.5-4 3.5.2 Node Attribute Codes ................ 3.5-6 3.5.3 Area Attribute Codes ................ 3.5-6 3.5.4 Line Attribute Codes ................3.5-11 3.5.5 Single-Point Attribute Codes ............3.5-13 3.5.6 General Purpose Attribute Codes ..........3.5-13 3.5.7 Descriptive Attribute Codes ............3.5-13 3.5.8 Parameter Attribute Codes .............3.5-13 Appendix 3.5.A Civil Divisions ............ 3.5.A-1 Appendix 3.5.B Generic Examples of Reservation Types . 3.5.B-1 Appendix 3.5.C Various Reservations and Equivalent Attribute Codes ............ 3.5.C-1 3.6 Survey Control and Markers--Major Code 150 ......... 3.6-1 3.6.1 General Principles ................. 3.6-1 3.6.1.1 Node Attribute Codes ........... 3.6-1 3.6.1.2 Area Attribute Codes ........... 3.6-1 3.6.1.3 Line Attribute Codes ........... 3.6-1 3.6.1.4 Single-Point Attribute Codes ....... 3.6-1 3.6.1.5 General Purpose Attribute Codes ..... 3.6-2 3.6.1.6 Descriptive Attribute Codes ....... 3.6-2 3.6.1.7 Parameter Attribute Codes ........ 3.6-2 3.6.1.8 List of Survey Control and Markers Attribute Codes ............. 3.6-3 3.6.2 Node Attribute Codes ................ 3.6-5 3.6.3 Area Attribute Codes ................ 3.6-5 07/95 3-v Standards for Digital Line Graphs Part 3: Attribute Coding 3.6.4 Line Attribute Codes ................ 3.6-5 3.6.5 Single-Point Attribute Codes ............ 3.6-5 3.6.6 General Purpose Attribute Codes .......... 3.6-7 3.6.7 Descriptive Attribute Codes ............ 3.6-7 3.6.8 Parameter Attribute Codes ............. 3.6-8 3.7 Roads and Trails--Major Code 170 .............. 3.7-1 3.7.1 General Principles ................. 3.7-1 3.7.1.1 Node Attribute Codes ........... 3.7-1 3.7.1.2 Area Attribute Codes ........... 3.7-1 3.7.1.3 Line Attribute Codes ........... 3.7-1 3.7.1.4 Single-Point Attribute Codes ....... 3.7-2 3.7.1.5 General Purpose Attribute Codes ..... 3.7-2 3.7.1.6 Descriptive Attribute Codes ....... 3.7-3 3.7.1.7 Parameter Attribute Codes ........ 3.7-3 3.7.1.8 List of Roads and Trails Attribute Codes . 3.7-5 3.7.2 Node Attribute Codes ................ 3.7-8 3.7.3 Area Attribute Codes ................ 3.7-9 3.7.4 Line Attribute Codes ................ 3.7-9 3.7.5 Single-Point Attribute Codes ............3.7-14 3.7.6 General Purpose Attribute Codes ..........3.7-14 3.7.7 Descriptive Attribute Codes ............3.7-17 3.7.8 Parameter Attribute Codes .............3.7-22 3.8 Railroads--Major Code 180 ................. 3.8-1 3.8.1 General Principles ................. 3.8-1 3.8.1.1 Node Attribute Codes ........... 3.8-1 3.8.1.2 Area Attribute Codes ........... 3.8-1 3.8.1.3 Line Attribute Codes ........... 3.8-1 3.8.1.4 Single-Point Attribute Codes ....... 3.8-2 3.8.1.5 General Purpose Attribute Codes ....