| Date: | 2019-08-03 |
| Time: | 1421 |
| Geyser: | UNNG-TGG-1 |
| Webcam: | No |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | >0.75m |
| Standardized Duration: | >0.75m |
| Time Entered: | 2019-08-03 20:16:40 |
| Time Uploaded: | 2019-08-03 20:16:40 |
| Entrant: | JSJ |
| Observer: | James St. John |
| Submitted to: | Geysertimes.org |
| Comments: | Eruption from earliest 1421 to late 1421. |