| Date: | 1975-04-30 |
| Time: | 1926 |
| Geyser: | Grand |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 12m58s |
| Standardized Duration: | 12m 58s |
| Grand Code: | -5- |
| Time Entered: | 2012-08-31 18:45:11 |
| Time Uploaded: | 2019-05-13 21:47:41 |
| Entrant: | BoekelUpload |
| Observer: | OFVCL-EV |
| Submitted to: | Geysertimes.org |
| Comments: | B1=7m18 P=36s B2=29s P=48s B3=35s P=61s B4=38s P=64s B5=29s |