Illinois topographic map. Al ak az ar ca co ct de fl ga hi id il in ia ks ky la me md ma mi mn ms mo mt ne nv nh nj nm ny nc nd oh ok or pa ri sc sd tn tx ut vt va wa wv wi wy dc. Find topo maps by state. The data were digitized in the late 1960s early 1970s and in 1984 85 from 75 and 15 minute usgs topographic quadrangles. Isgs maps are published in a variety of series differentiated primarily by level of review.
You have permission to view this web page and utilize it for a variety of purposes. The topographic maps on topozone were created by the united states geological survey usgs and have evolved for more than a century. The topographic map remains an indispensable tool for everyday use in government science industry. All important instructions on this topographical maps website are written in this color typeface.
This is a generalized topographic map of mississippi. Isgs plss data explanation. Our expertise in the field of surveying expanded drastically with our concentration on the use and development of geospatial information systems. The data set within the esri arcgis map viewer contains illinois public land survey system plss boundaries.
Be sure to read the instructions from page to page. See our state high points map to learn about charles mound at 1235 feet the highest point in illinois. It shows elevation trends across the state. In 2009 usgs began the release of a new generation of topographic maps us topo in electronic form and in 2011 complemented them with the release of high resolution scans of more than 178000 historical topographic maps of the united states.
Topographic map legend and symbols. The above map image is a simple plot offering the spatial layout of this locale with a simple combination of map components.