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May 2024

Introducing the 3D Hydrography Program

The US Geological Survey has launched the 3D Hydrography Program (3DHP), the first systematic remapping of the Nation’s hydrography since the original 1:24,000-scale mapping program was active between 1947 to 1992. 3DHP data will be based on high-resolution elevation data collected by the 3D Elevation Program collected and validated to meet published specifications, maintained in […]
08 May
10:00 am - 11:00 am
July 2024
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