United States Department of the Interior, Geological Survey [and] The Republic of the Sudan, Ministry of Defence, Survey Department. Relief shown by shading. Includes index map and block diagram.
Image from the Map Collections courtesy Stanford University Libraries. This item is in the public domain. There are no restrictions on use. If you have questions, please contact Branner Earth Sciences Library & Map Collections at brannerlibrary@stanford.edu.
Rights Holder:
This work has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.