Quadrangle Topographic Map
File:Harshaw Quadrangle USGS Topographical Map.gif Wikipedia Sample Topographic Map Quadrangle (geography) Wikipedia 1:24,000 scale USGS topographic quadrangle map | FEMA.gov US Topo: Maps for America
3. Legacy Data: USGS Topographic Maps | The Nature of Geographic Training: How to Navigate with a Topo Map | HowToWilderness.™ USGS Topo Map Kaaterskill Catskill Mountains Sluggo's NW 305 Hijacking Research Web Site
3. Legacy Data: USGS Topographic Maps | The Nature of Geographic Training: How to Navigate with a Topo Map | HowToWilderness.™ USGS Topo Map Kaaterskill Catskill Mountains Sluggo's NW 305 Hijacking Research Web Site