The production of US Topos follows the U.S. Department of Agriculture National Agricultural Imagery Program (NAIP). USGS intends to refresh the map series for the conterminous United States once every 3 years. The first 3-year production cycle was 2010-...
Except for the following three cases, these maps have no copyright: Most maps contain commercially licensed road data for all areas outside National Forests (roads inside National Forests are public domain data provided by the US Forest Service). The...
GeoPDF is a TerraGo Technologies published extension to the Adobe PDF file format. GeoPDF is not a separate format; any GeoPDF conforms to the base PDF specification, and GeoPDF files can be used as plain PDF files.Learn more about GeoPDF: Wikipedia 
US Topo project objectives are continuous product improvement, a rapid refresh cycle, and automated production using currently best available data. It is therefore unlikely there will ever be a final and ultimate product. These goals are different than...
The accuracy statement is left off these maps because the accuracy of the map and of the data used to make the map are written in the metadata statement. These maps are as accurate as the data sources used to make them, but because these sources are many...
Maybe, but probably not soon. The US Topo project's priorities are to achieve full coverage and maintain a short, regular refresh cycle for the 50 states, Puerto Rico, and the Pacific Territories at scales of 1:20,000 to 1:25,000 (depending on the area...
Users can interact with the map on a computer screen without GIS software or expertise. For example, ground coordinates in a variety of reference systems can be displayed, and ground distances can be measured. Full functionality requires Adobe Reader...
You will find a user guide at this USGS website.. For additional information on using these maps, see this TERRAGO website.
There are three ways to get full-scale plots of the 1:24,000-scale map.1. Request the plot from the USGS Store after selecting the map you want plotted.2. Download and send the GeoPDF map file to a local business that can plot it for you.3. Download and...
Refer to this USGS user guide.