The US Geological Survey (USGS) has a program called the 3D Elevation Program (3DEP). From the USGS website: The 3D Elevation Program (3DEP) initiative is being developed to respond to growing needs ...
The data will be used to support the state's flood-risk management and infrastructure planning efforts. 3DHP is the first systematic remapping of U.S. hydrography since the original USGS ...
ANCHORAGE, Alaska (Reuters) - North America's tallest peak, Mount McKinley in Alaska, just got shorter, according to new maps published by the official U.S. geographers. New technology used by the U.S ...