| 1. Center for Spatial Analysis
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| Specializing in the study and application of geospatial science and technology. Includes information about research and development, data, products and tools. |
| http://www.csa.ou.edu |
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| 2. Counties and Regions
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| Map displaying counties and regions as used in the Oklahoma category of the Open Directory Project. |
| http://member.newsguy.com/~sanford/okregion.html |
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| 3. Oklahoma County Courthouses
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| Photographs and locations of many county courthouses throughout the state, as well as population and other information. |
| http://www.barnfield.net/oklahoma |
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| 4. Oklahoma Maps
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| The Perry-Castañeda Library Map Collection. |
| http://www.lib.utexas.edu/maps/oklahoma.html |
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