| Date: | 2017-09-25 |
| Time: | 0350 (?) |
| Geyser: | Lion |
| Webcam: | Yes |
| Initial: | Yes |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2017-09-25 09:34:47 |
| Time Uploaded: | 2017-09-25 09:34:49 |
| Entrant: | DaveM |
| Observer: | |
| Submitted to: | |
| Comments: | Too obscured by steam from Old Faithful to be certain Lion was erupting. |