| | Montana State Historic Preservation Office
| Tel: 406-444-7715 |
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| | Nebraska State Historic Preservation Office
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| | Nevada State Historic Preservation Office
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| | New Mexico Historic Preservation Division
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| | State Historical Society of North Dakota
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| | Ohio Historic Preservation Office
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| | State Historic Preservation Office (Oklahoma Historical Society)
| Tel: 405-521-6249 |
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| | South Carolina State Historic Preservation Office
| Tel: 803-896-6100 |
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| | Oregon Parks & Recreation: Heritage Programs: State Historic Preservation Office (SHPO)
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| | South Dakota State Historical Society
| Tel: 605-773-3458 |
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