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Chapter 14
Geographic divisions
The Public Land Survey System (PLSS) has a hierarchy of lines. Principal meridians and base lines and their related townships, sections, and subdivisions of sections are incorporated in the description of land conveyed by the Federal Government and others.
| Black Hills Meridian and Base Line. (South Dakota) | New Mexico Principal Meridian and Base Line. (New Mexico-Colorado) |
| Boise Meridian and Base Line. (Idaho) | Point of Beginning and Geographer's Line. (Ohio) |
| Chickasaw Meridian and Base Line. (Mississippi-Tennessee) | Principal Meridian and Base Line. (Montana) |
| Choctaw Meridian and Base Line. (Mississippi) | Salt Lake Meridian and Base Line. (Utah) |
| Cimarron Meridian and Base Line. (Oklahoma) | San Bernardino Meridian and Base Line. (California-Nevada) |
| Copper River Meridian and Base Line. (Alaska) | Second Principal Meridian and Base Line. (Illinois-Indiana) |
| Fairbanks Meridian and Base Line. (Alaska) | Seward Principal Meridian and Base Line. (Alaska) |
| Fifth Principal Meridian and Base Line. (Arkansas-Iowa-Minnesota-Missouri-North Dakota-South Dakota) | Sixth Principal Meridian and Base Line. (Colorado-Kansas-Nebraska-South Dakota-Wyoming) |
| First Principal Meridian and Base Line. (Ohio-Indiana) | St. Helena Meridian and Base Line. (Louisiana) |
| Fourth Principal Meridian and Base Line. (Illinois) | St. Stephens Meridian and Base Line. (Alabama-Mississippi) |
| Fourth Principal Meridian and Base Line Wisconsin. (Minnesota-Wisconsin) | Tallahassee Meridian and Base Line. (Florida) |
| Gila and Salt River Meridian and Base Line. (Arizona) | Third Principal Meridian and Base Line. (Illinois) |
| Humboldt Meridian and Base Line. (California) | Uintah Special Meridian and Base Line. (Utah) |
| Huntsville Meridian and Base Line. (Alabama-Mississippi) | |
| Indian Meridian and Base Line. (Oklahoma) | Umiat Principal Meridian and Base Line. (Alaska) |
| Kateel River Principal Meridian and Base Line. (Alaska) | Ute Principal Meridian and Base Line. (Colorado) |
| Louisiana Meridian and Base Line. (Louisiana-Texas) | Washington Meridian and Base Line. (Mississippi) |
| Michigan Meridian and Base Line. (Michigan-Ohio) | |
| Mount Diablo Meridian and Base Line. (California-Nevada) | Willamette Meridian and Base Line. (Oregon-Washington) |
| Navajo Meridian and Base Line. (Arizona-New Mexico) | Wind River Meridian and Base Line. (Wyoming) |
- ↑ Information courtesy of the U.S. Department of the Interior, Bureau of Land Management.
