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| Yankton County, South Dakota | |
|---|---|
|
Scottish Rite Masonic Center in Yankton. | |
|
Location in the state of South Dakota | |
|
South Dakota's location in the U.S. | |
| Founded | April 10, 1862 |
| Named for | Yankton Sioux |
| Seat | Yankton |
| Largest city | Yankton |
| Area | |
| • Total | 532 sq mi (1,378 km2) |
| • Land | 521 sq mi (1,349 km2) |
| • Water | 11 sq mi (28 km2), 2.1 |
| Time zone | Central: UTC-6/-5 |
| Website | www.co.yankton.sd.us |
| Footnotes: For infobox source see[1] | |
| Well ID | Operator Name | Well Type | Well Status |
|---|---|---|---|
| 40-135-05000 | Oil Ventures Development Co., Inc. | Dry Hole | Abandoned |
| 40-135-05001 | F. A. Rittershaus | Dry Hole | Abandoned |
For data sources see[2]