Louisiana Quads Add Trails and Survey Data

May 21, 2015 — Several of the 812 new US Topo quadrangles for Louisiana now display public trails along with improved data layers. Other significant additions include public land survey system information (PLSS), redesign of map symbols, enhanced railroad...

State and Regional 3DEP Stakeholder Workshops Underway

May 19, 2015 — The U.S. Geological Survey National Geospatial Program is developing the 3D Elevation Program (3DEP) to respond to growing needs for high-quality topographic data and for a wide range of other three-dimensional (3D) representations of the Nation's...