| Date: | 1976-08-20 |
| Time: | 0955 |
| Geyser: | Grotto Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 20m |
| Standardized Duration: | 20m |
| Time Entered: | 2012-10-09 13:57:17 |
| Time Uploaded: | 2019-05-13 21:49:48 |
| Entrant: | BoekelUpload |
| Observer: | OFVCL-EV |
| Submitted to: | Geysertimes.org |
| Comments: | constant bursts 50-70 ft |