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USGS Frequently Asked Questions
FAQ's about Geospatial Data
When I try to import a USGS Digital Elevation Model (DEM) into ARC/INFO, I get a premature EOF@ error message.
When I import SDTS Digital Line Graphs (DLGs) into ARC/INFO, they are thousands of feet apart. Why?
How can I view a USGS Digital Line Graph (DLG)?
What are the formats of digital orthophoto quadrangles (DOQs)?
How do I get files off the county digital orthophoto quadrangle (DOQ) CD-ROM?
I downloaded 1:100,000-scale Digital Line Graph (DLG) files from the USGS web site and can't read them into Arc.
How does USGS produce a digital orthophoto quadrangle (DOQ)?
How can I get DLG data into AutoCAD?
What is the difference between a Band and a Channel?
What is the resolution of a digital orthophoto quadrangle (DOQ)?
What is digital line graph (DLG) data?
How can I get Digital Elevation Model (DEM) data into AutoCAD and (or) Microstation?
How can I view a USGS digital orthophoto quadrangle (DOQ)?
How can I determine the UTM zone of my digital orthophoto quadrangle (DOQ)?
What are digital elevation models (DEMs)?
What is a digital orthophoto quadrangle (DOQ)?
Where can I find bathymetric data?
How can I convert USGS Digital Elevation Models (DEMs) to XYZ triples?
How can I find digital map data?
Do you have map data in digital form?
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