How to create customized geospatial PDFs with layer controls.
You can use historic maps and a simple app to explore the past using your smartphone.
The oldest relief model in Science Hall, Edwin Howell’s 1875 “Grand Canyon of the Colorado and Southern Cliffs of Utah,” has been restored using conservation techniques.
The Wisconsin Geological and Natural History Survey (WGNHS) plans to close its map sales office on December 30, 2019. Users of USGS topographic maps should use this as an opportunity to switch to the newer “US Topos” that have replaced the USGS’s legacy paper topographic maps.
This document provides an overview of geospatial PDFs and their basic features, as well as some of the tools available to interact with these files, using USGS US Topos as a case study. 2nd edition, published in 2019.
The U.S. Geological Survey (USGS) produces 1:100,000-scale county maps for each of the 72 counties in Wisconsin. These maps show topographic features including contours and elevation in meters, highways, roads and other manmade structures, water features, woodland areas, and geographic names. These maps vary in size depending on the particular county. USGS county maps in Wisconsin were generally produced between 1976 and 1990.
Engravings released that were once used to create USGS topos
Project Manager Greg Allord highlights some interesting Wisconsin connections to a major USGS initiative.
Over 2,800 historic maps of Wisconsin available in GeoPDF format for free.
In response to the need for updated topographic maps, the U.S. Geological Survey has developed a national map series called the US Topo.