| Date: | 1976-04-15 |
| Time: | 0628 |
| Geyser: | Great Fountain |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | |
| Time Entered: | 2017-10-01 19:41:56 |
| Time Uploaded: | 2017-10-01 19:41:56 |
| Entrant: | research-mab |
| Observer: | Hutchinson field notes - box 74 |
| Submitted to: | |
| Comments: | 0621 2 min to max of 6’ then 7 min pause- moderately slow beginning for B1 – broad super massive bursts ~110’ of long duration {15-20 sec} at 2min into B1 |