VT 100 ft Contour Lines generated from USGS 30 meter NED DEM

(Link to Metadata) This data layers consists of 100 foot contours intervals interpolated from the USGS NED. USGS NED (National Elevation Dataset) data are described in the documentation for data layer ElevationDEM_DEM24. More information about the NED can be accessed by going to https://www.usgs.gov/publications/national-elevation-dataset .(元数据链接) 本数据图层包含基于美国地质调查局国家高程数据集（USGS NED，National Elevation Dataset）插值生成的100英尺等高距等高线数据。美国地质调查局国家高程数据集的相关说明可在ElevationDEM_DEM24数据图层的文档中查阅。如需了解该数据集的更多信息，可访问https://www.usgs.gov/publications/national-elevation-dataset。