As part of the Historic Topographic Map Collection (HTMC), you can filter USGS historical topographic by time period. Simply, move the time slider and it will filter and preview the Topo maps. Similar to the TNM Viewer, add items to your cart that you want to download. To do that, you...
The folks atNational Geographicjust did a solid favor for all the adventurous outdoor photographers out there. They put every US Geological Survey (USGS) topographical map from across the United States on one easy-to-navigate site and made them easy to print out at home. If you’ve ever g...