| Injection Point | Birks Fell Cave [SD931769] |
|
| Detection Point | Field drain near bend in River Wharfe [] |
| Tracer | Fluorescein |
| Quantity | 3 onces |
| Detection Method | Probably visual |
| Time | 8 hours |
| Distance | |
| Average Velocity | |
| Depth |
| Date | 1968 |
| Notes | |
| Test credit | Craven Pothole Club PMCI |
| References | Craven Pothole Club Journal 4(2):120 (1968) |