Geologic Terms and Geographic Divisions
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| Between the Miamis, north of Symmes Purchase. (Ohio) | Scioto River Base. (Ohio) |
| Muskingum River Survey. (Ohio) | Twelve-Mile-Square Reserve. (Ohio) |
| Ohio River Base. (Indiana) | United States Military Survey. (Ohio) |
| Ohio River Survey. (Ohio) | West of the Great Miami. (Ohio) |
Sources: Manual of Instructions for the Survey of the Public Lands of the United States, Bureau of Land Management, GPO; Initial Points of the Rectangular Survey System, C. Albert White, 1996.
See http://www.blm.gov/wo/st/en/prog/more/cadastralsurvey.html for more information on prinicipal meridians and base lines.
| River | Length (in miles) |
River | Length (in miles) |
| Nile (Africa) | 4,160 | MacKenzie (Canada) | 2,635 |
| Amazon (S. America) | 4,000 | Mekong (Vietnam) | 2,600 |
| Yangtze (China) | 3,964 | Niger (Africa) | 2,590 |
| Yelllow (China) | 3,395 | Yenisey (Russia) | 2,543 |
| Ob-Irtysh (Russia) | 3,362 | Missouri (U.S.) | 2,540 |
| Armur (Asia) | 2,744 | Parana (S. America) | 2,485 |
| Lena (Russia) | 2,734 | Missippi (U.S.) | 2,340 |
| Congo (Africa) | 2,718 | Murray-Darling (Australia) | 2,310 |
Note.—Information compiled from numerous public domain Web sites; references cite different lengths for the same river depending on origin.
| River | Length (in miles) |
River | Length (in miles) |
| Missouri | 2,540 | Ohio | 1,310 |
| Mississippi | 2,340 | Red | 1,290 |
| Yukon | 1,980 | Brazos | 1,280 |
| Rio Grande | 1,900 | Columbia | 1,240 |
| St. Lawrence | 1,900 | Snake | 1,040 |
| Arkansas | 1,460 | Platte | 990 |
| Colorado | 1,450 | Pecos | 926 |
| Atchafalaya | 1,420 | Canadian | 906 |
Source: Information courtesy of the U.S. Geological Survey; see http://ga.water.usgs.go/edu/riversofworld.html.
- ↑ Information courtesy of the U.S. Department of the Interior, Bureau of Land Management.
