ArcGIS REST Services Directory |
Home > services > NTIR_OTHER_ChisholmGreatWesternNHTFSEA_ln (FeatureServer) > All Layers and Tables | | API Reference |
The National Trail GIS Data Schema (NTDS) Extended Core is a set of standardized trail data attributes with corresponding definitions and values applicable to tabular and spatial data. Extended Core includes additional attributes some of which are only applicable to National Scenic Trails and National Historic Trails. The NTDS reflect a core set of questions and data selection criteria, and are not intended to cover all possible trail data or agency-specific data needs.
The NTDS can be incorporated into agency databases and GIS spatial layers to support a wide variety of trail inventory, planning, management, and public information needs.