| Date: | 1976-08-31 |
| Time: | 1154 |
| Geyser: | Grand |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 12m41s |
| Standardized Duration: | 12m 41s |
| Grand Code: | -4- |
| Time Entered: | 2012-10-09 14:09:51 |
| Time Uploaded: | 2019-05-13 21:45:20 |
| Entrant: | BoekelUpload |
| Observer: | OFVCL-EV |
| Submitted to: | |
| Comments: | 4b. Vent 2m46s after Gr B1=8m34s P1=33s B2=50s P2=40s B3=40s P3=45s B4=39s |