By Norma Kline, OSU Extension Forester for Coos and Curry Counties and Alicia Christiansen, OSU Extension Forester for Douglas County
In our first article of this series (available here) we gave an introduction to a few digital mapping applications (map apps). We will continue our discussion of digital map resources and applications in future articles, but we first want to give a shout out to the value of paper maps and how you can print out a topographic map from a digital source.
Many woodland owners, hikers, and forest professionals are familiar with the United States Geological Survey (USGS) topographic maps (also referred to as 7.5 minute quadrangles, or, “quads”) and use them to navigate their woodlands, hiking trails, or work locations. Either rolled up and kept in bin in the corner for future reference, tacked to the wall, or carefully folded up and carried in your backpack, USGS maps were once the standard navigational tool. This is due to their high quality of mapping and standardized symbols, which represent a wide variety of landscape features including hydrology, vegetation, geologic features, and human-made structures. These symbols and contour lines can give you an indication of the lay of the land and can also be used to estimate slope.
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