Central Region Core Research Center Administration
| Township: | 21N | Range: | 4E | Section: | 31 | 
| Quarter: | SWNW | County: | HARDING | State: | SD | 
| API Number: | 4006320196 | Operator: | W C KIRKWOOD | Well Name: | 12-31 FEDERAL | 
| Latitude: | 45.742051 | Longitude: | -103.683513 | Coordinate Source: | FROM STATE RECORDS | 
| Minimum Depth: | 4000 | Maximum Depth: | 8500 | Security Flag: |