USGS Legacy Benchmark Descriptions
收藏Kentucky Open Geospatial Data2025-04-04 更新2026-05-16 收录
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https://services3.arcgis.com/ghsX9CKghMvyYjBU/arcgis/rest/services/Ky_USGS_15M_Benchmark_Datasheets_WM_gdb/FeatureServer
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资源简介：
The benchmark descriptions are grouped by United States Geological Survey (USGS) 15-minute quadrangles. Datums: North American Datum of 1927, National Geodetic Vertical Datum of 1929, Sea Level Datum of 1929. The documents were scanned to preserve the historic horizontal and vertical survey control data from USGS. Datasheets: https://kygeonet.ky.gov/ngs/usgs_datasheets/
提供机构：
Kentucky Division of Geographic Information (DGI)
创建时间：
2025-04-04
