ArcMap

How do I convert a .img file into a raster file that Arcmap can recognize?

Question: Hello,

I am trying to convert a DEM that can be downloaded as a .img file to a raster file type that ArcGIS can recognize. The .img file I am working with is from the USGS Global Land Cover Characteristics Geodatabase (GLCC) Version 2.

Description of data:

http://edc2.usgs.gov/glcc/sadoc2_0.php

Data:

http://edc2.usgs.gov/glcc/tablambert_sa.php

Thank you for your help!

Answer: We tried to download an .img file from this site, too, and also had problems.  In this case, you have to contact the data provider (UISFGS) because it appears that the files are corrupt or that there is some other problem with the source. You should be able to open and ERDAS .img file in ArcGIS without having to convert formats at all. Please contact the USGS to see if they can help you with this problem.

Formerly a Mapping Center Ask a Cartographer  Q & A.

About the author

Dr. Aileen Buckley has been making maps since she was an undergraduate student. She has a Bachelors in Geography and Spanish from Valparaiso University, a Masters in Geography from Indiana University, and a Ph.D. in Geography from Oregon State University. She is a senior product engineer on the Living Atlas team, and her work focuses on determining and sharing best practices for mapping and analysis with modern GIS. She publishes and presents world-wide on many aspects of mapping and GIS. She is a co-author of Map Use: Reading, Analysis, Interpretation, and she is a co-editor for the Atlas of Oregon. Aileen is a former president of CaGIS (the U.S. cartographic association) and is actively involved with the International Cartographic Association in which she is the lead delegate for the United States.

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