| Well Name | C-491 |
| Description | C - 491 |
| Latitude [NAD83] | 261118.324 |
| Longitude [NAD83] | 814800.304 |
| FL State Plane East [NAD83] | 393794.179 |
| FL State Plane North [NAD83] | 674983.411 |
| County | Collier |
| Land Surface Elev. [NGVD29] | 12.6 |
| Elevation Source | SURVEY |
| Elevation Error [ft] +/- | .1 |
| Land Surface Elev. [NAVD88] | |
| Total Depth [FT BLS] | 71 |
| Completion Date | 01-JAN-1970 |
| Hole Diameter | |
| Well Owner | GEOLOGICAL SURVEY |
| Driller Name | |
| Drilling Method | DRIVEN |
| Construction Comments | |
| Construction Date | |
| Destroy Date | |
| Drilling Comments | |
| Development Method | |
| Development Hours | |
| General Comments | Automated well construction update from USGS NWIS Database on (12-10-2004) |
