3DNTM Timeline
Detailed Description
The 3D National Topography Model (3DNTM) is a vision for an integrated 3D model of elevation and hydrography data that will support environmental, climate change, and infrastructure applications. It responds to changing U.S. policy and will support Federal, State, Tribal, Non-Governmental Organization (NGO), local, and other stakeholder needs.
Sources/Usage
Public Domain.