| Date: | 1991-07-18 |
| Time: | 2100 ns |
| Geyser: | Whistle |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | Major |
| Duration: | ~4 water ~40 heavy steam |
| Time Entered: | 2013-02-19 23:15:42 |
| Time Updated: | 2013-02-20 08:58:26 |
| Time Uploaded: | 2013-02-20 08:58:26 |
| Entrant: | geysergaze |
| Observer: | Clark Murray |
| Submitted to: | |
| Comments: | NS seen from Old Faithful overpass. Water phase lasted over four minutes. Most water phases recorded lasted about a minute. |