Central Region Core Research Center Administration
| Township: | 4N | Range: | 50W | Section: | 31 | 
| Quarter: | CNWSW | County: | WASHINGTON | State: | CO | 
| API Number: | 0512107324 | Operator: | CALVERT DRILLING | Well Name: | 1 CHAS HALSEY | 
| Latitude: | 40.271734 | Longitude: | -103.020905 | Coordinate Source: | FROM STATE RECORDS | 
| Minimum Depth: | 3100 | Maximum Depth: | 4520 | Security Flag: |