| Date: | 1977-09-14 |
| Time: | 0653 |
| Geyser: | Grand |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Grand Code: | -2-+1 |
| Time Entered: | 2021-11-05 14:28:49 |
| Time Uploaded: | 2021-11-05 14:28:49 |
| Entrant: | mhreed |
| Observer: | Hutchinson (1977) annual report |
| Submitted to: | Geysertimes.org |
| Comments: | OFVC logs confirm AM time. From pg. 27: "The second [eruption with an afterburst in September] was three days later [after the 11th] at the end of the 6:53:48 MDT eruption where again a third burst was preceded by a pause of 9 minutes and 2 seconds." |