I am trying to import a DLG vector file into ArcGIS 10.3.1; when trying to add it as data - Arc does not recognize it. The file was developed by USGS from topographic quadrangles in the 1990s. When you open it in text editor - it looks similar to an ASCII file. I can find no conversion tools and have found no references to it online. Any ideas? The file is attached.
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