| Date: | 1964-05-28 |
| Time: | 1035 |
| Geyser: | Steamboat |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | 10m |
| Standardized Duration: | 10m |
| Time Entered: | 2017-09-18 19:02:52 |
| Time Uploaded: | 2019-05-13 21:49:18 |
| Entrant: | research-mab |
| Observer: | 1964 log [Geo Box 2] |
| Submitted to: | |
| Comments: | Steam: many hours. Next water thrown from vent 66 hours 25 minutes. East vent played 25 minutes to height of Old Faithful {120-130} Height at least 300 feet of major burst. West vent was observed to be inactive a few hours before. |