| Date: | 1979-04-21 |
| Time: | 1629 |
| Geyser: | Giantess |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 15h31m |
| Standardized Duration: | 15h 31m |
| Time Entered: | 2013-05-05 09:27:14 |
| Time Uploaded: | 2019-05-13 21:47:20 |
| Entrant: | LynnS |
| Observer: | Hutchinson |
| Submitted to: | |
| Comments: | MST;duration provided in Hutchinson 1978-79 report. |