Mappt Elements Geospatial Mapping App provides free access to 330,000 USGS GeoPDFs

Mappt Elements, a free data collection and mapping iOS application, has just released a feature that enables GeoPDFs to be added to a fully interactive map and already comes with a huge range of global datasets. Users can access the entire USGS National Maps database with over 330,000 high-resolution topographical maps covering the entire United ["]